Friday, April 13, 2012
Ways to Keep Your PC cool
Your PC contains a lot of parts, almost all of which create heat when your computer is on. Some parts, like the CPU and graphics card , can get so hot you could cook on them.
In a properly configured computer, much of this heat is moved out of the computer's case by several fans. If your computer isn't removing the hot air fast enough, the temperature can get so hot that you risk serious damage to your PC. Needless to say, keeping your PC cool should be a top priority.
Below are the top eleven PC cooling solutions. Many are free or very inexpensive so there's really no excuse to let your computer overheat.
Allow for Air Flow
The easiest thing you can do to help keep your PC cool is to give ita little breathing room by removing any obstacles to air flow.
Make sure there's nothing sitting right against any side of the computer, especially the back. Most of the hot air flows out of the back end of the computer case. There should be at least 2 to3 inches open on either side and the back should be completely open and unobstructed.
If your computer is hidden away inside a desk, make sure the doorisn't closed all the time. Cool air enters from the front and sometimes from the sides of the case. If the door is closed all day, hot air tends to recycle inside the desk, getting hotter and hotter the longer the computer is running.
Run Your PC With the Case Closed
An "urban legend" about PC cooling is that running your computer with the case open will keep it cooler. It does seem logical- if the case is open, there would be more air flow which would help keep the computer cooler.
The missing puzzle piece here is dirt. When the case is left open, dust and debris clog the cooling fans faster than when the case is closed. This causes the fans to slow down and fail much quicker than usual. A clogged up fan doesa terrible job at cooling your expensive computer components.
It's true that running your computer with the case open might provide a small benefit at first, but the increase in fan exposure to debris has a much greater impact on temperature.
Clean Your Computer
The fans inside your computer are there to keep it cool. Do you know what slows a fan down andthen eventually makes it stop? Dirt- in the form of dust, pet hair, etc. It all finds a way into your computer and much of it gets stuck in the several fans.
One of the most effective ways to cool your PC is to clean the internal fans. There's a fan on top the CPU, one inside the power supply , and usually one or more on the front and/or back of the case.
Just shut your computer off, open up the case , and use canned air to remove the dirt from each fan. If your PC is really dirty, take it outside to clean or all that dirt willjust settle elsewhere in the room, eventually ending up back inside your PC!
Move Your Computer
Is the area you're running your computer in just too hot or too dirty? Sometimes your only optionis to move the computer. A cooler and cleaner area of the same room might be fine, but you may have to consider moving the computer somewhere else entirely.
If moving your PC just isn't an option, keep reading for more tips.
Important: Moving your computer can cause damage to the sensitive parts inside if you're not careful. Be sure to unplug everything, don't carry too much at once, and sit things down very carefully. Your main concern will be your computer's case which holds all the important parts like your hard drive , motherboard , CPU, etc.
Upgrade the CPU Fan
Your CPU is probably the most sensitive and expensive part inside your computer. It also has the most potential to overheat.
Unless you've replaced your CPU fan already, the one that's in your computer now is probably a bottom-of-the-line fan that cools your processor just enough to keep it working properly, and that's assuming it's running at fullspeed.
Many companies sell large CPU fans that help keep CPU temperature lower than a factory installed fan ever could.
Install a Case Fan (or Two)
A case fan is just a small fan that attaches to either the front or the back of a computer case, from theinside. Case fans help move air through a computer.
Installing two case fans, one to move cool air into the PC and another to move warm air out of the PC, is a great way to keep a computer cool.
Case fans are even easier to installthan CPU fans so don't be afraid to get inside your computer to tackle this project.
Stop Overclocking
If you're not sure what overclocking is, you're probably not doing it so you don't have to worry about it.
To the rest of you, you're well aware that overclocking pushes your computer's capabilities to itslimits. What you may not realize is that these changes have a direct effect on the temperature that your CPU and any other overclocked components operate at.
If you're overclocking your PC's hardware but haven't taken otherprecautions to keep that hardware cool, I definitely recommend reconfiguring your hardware to factory default settings.
Saturday, April 7, 2012
A Web Standards Checklist, How to make a proper website
A web standards checklist
The term web standards can mean different things to different people. For some, it is 'table-free sites', for others it is 'using valid code'. However, web standards are much broader than that. A site built to web standards should adhere to standards (HTML, XHTML, XML, CSS, XSLT, DOM, MathML, SVG etc) and pursue best practices (valid code, accessible code, semantically correct code, user-friendly URLs etc).
In other words, a site built to web standards should ideally be lean, clean, CSS-based, accessible, usable and search engine friendly.
About the checklist
This is not an uber-checklist. There are probably many items that could be added. More importantly, it should not be seen as a list of items that must be addressed on every site that you develop. It is simply a guide that can be used:
* to show the breadth of web standards
* as a handy tool for developers during the production phase of websites
* as an aid for developers who are interested in moving towards web standards
The checklist
1.Quality of code
1. Does the site use a correct Doctype?
2. Does the site use a Character set?
3. Does the site use Valid (X)HTML?
4. Does the site use Valid CSS?
5. Does the site use any CSS hacks?
6. Does the site use unnecessary classes or ids?
7. Is the code well structured?
8. Does the site have any broken links?
9. How does the site perform in terms of speed/page size?
10. Does the site have JavaScript errors?
2. Degree of separation between content and presentation
1. Does the site use CSS for all presentation aspects (fonts, colour, padding, borders etc)?
2. Are all decorative images in the CSS, or do they appear in the (X)HTML?
3. Accessibility for users
1. Are "alt" attributes used for all descriptive images?
2. Does the site use relative units rather than absolute units for text size?
3. Do any aspects of the layout break if font size is increased?
4. Does the site use visible skip menus?
5. Does the site use accessible forms?
6. Does the site use accessible tables?
7. Is there sufficient colour brightness/contrasts?
8. Is colour alone used for critical information?
9. Is there delayed responsiveness for dropdown menus (for users with reduced motor skills)?
10. Are all links descriptive (for blind users)?
4. Accessibility for devices
1. Does the site work acceptably across modern and older browsers?
2. Is the content accessible with CSS switched off or not supported?
3. Is the content accessible with images switched off or not supported?
4. Does the site work in text browsers such as Lynx?
5. Does the site work well when printed?
6. Does the site work well in Hand Held devices?
7. Does the site include detailed metadata?
8. Does the site work well in a range of browser window sizes?
5. Basic Usability
1. Is there a clear visual hierarchy?
2. Are heading levels easy to distinguish?
3. Does the site have easy to understand navigation?
4. Does the site use consistent navigation?
5. Are links underlined?
6. Does the site use consistent and appropriate language?
7. Do you have a sitemap page and contact page? Are they easy to find?
8. For large sites, is there a search tool?
9. Is there a link to the home page on every page in the site?
10. Are visited links clearly defined with a unique colour?
6. Site management
1. Does the site have a meaningful and helpful 404 error page that works from any depth in the site?
2. Does the site use friendly URLs?
3. Do your URLs work without "www"?
4. Does the site have a favicon?
1. Quality of code
1.1 Does the site use a correct Doctype?
A doctype (short for 'document type declaration') informs the validator which version of (X)HTML you're using, and must appear at the very top of every web page. Doctypes are a key component of compliant web pages: your markup and CSS won't validate without them.
CODE
http://www.alistapart.com/articles/doctype/
More:
CODE
http://www.w3.org/QA/2002/04/valid-dtd-list.html
CODE
http://css.maxdesign.com.au/listamatic/about-boxmodel.htm
CODE
http://gutfeldt.ch/matthias/articles/doctypeswitch.html
1.2 Does the site use a Character set?
If a user agent (eg. a browser) is unable to detect the character encoding used in a Web document, the user may be presented with unreadable text. This information is particularly important for those maintaining and extending a multilingual site, but declaring the character encoding of the document is important for anyone producing XHTML/HTML or CSS.
CODE
http://www.w3.org/International/tutorials/tutorial-char-enc/
More:
CODE
http://www.w3.org/International/O-charset.html
1.3 Does the site use Valid (X)HTML?
Valid code will render faster than code with errors. Valid code will render better than invalid code. Browsers are becoming more standards compliant, and it is becoming increasingly necessary to write valid and standards compliant HTML.
CODE
http://www.maxdesign.com.au/presentation/sit2003/06.htm
More:
CODE
http://validator.w3.org/
1.4 Does the site use Valid CSS?
You need to make sure that there aren't any errors in either your HTML or your CSS, since mistakes in either place can result in botched document appearance.
CODE
http://www.meyerweb.com/eric/articles/webrev/199904.html
More:
CODE
http://jigsaw.w3.org/css-validator/
1.5 Does the site use any CSS hacks?
Basically, hacks come down to personal choice, the amount of knowledge you have of workarounds, the specific design you are trying to achieve.
CODE
http://www.mail-archive.com/wsg@webstandardsgroup.org/msg05823.html
More:
CODE
http://css-discuss.incutio.com/?page=CssHack
CODE
http://css-discuss.incutio.com/?page=ToHackOrNotToHack
CODE
http://centricle.com/ref/css/filters/
1.6 Does the site use unnecessary classes or ids?
I've noticed that developers learning new skills often end up with good CSS but poor XHTML. Specifically, the HTML code tends to be full of unnecessary divs and ids. This results in fairly meaningless HTML and bloated style sheets.
CODE
http://www.clagnut.com/blog/228/
1.7 Is the code well structured?
Semantically correct markup uses html elements for their given purpose. Well structured HTML has semantic meaning for a wide range of user agents (browsers without style sheets, text browsers, PDAs, search engines etc.)
CODE
http://www.maxdesign.com.au/presentation/benefits/index04.htm
More:
CODE
http://www.w3.org/2003/12/semantic-extractor.html
1.8 Does the site have any broken links?
Broken links can frustrate users and potentially drive customers away. Broken links can also keep search engines from properly indexing your site.
More:
CODE
http://validator.w3.org/checklink
1.9 How does the site perform in terms of speed/page size?
Don't make me wait... That's the message users give us in survey after survey. Even broadband users can suffer the slow-loading blues.
CODE
http://www.websiteoptimization.com/speed/
1.10 Does the site have JavaScript errors?
Internet Explore for Windows allows you to turn on a debugger that will pop up a new window and let you know there are javascript errors on your site. This is available under 'Internet Options' on the Advanced tab. Uncheck 'Disable script debugging'.
2. Degree of separation between content and presentation
2.1 Does the site use CSS for all presentation aspects (fonts, colour, padding, borders etc)?
Use style sheets to control layout and presentation.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-style-sheets
2.2 Are all decorative images in the CSS, or do they appear in the (X)HTML?
The aim for web developers is to remove all presentation from the html code, leaving it clean and semantically correct.
CODE
http://www.maxdesign.com.au/presentation/benefits/index07.htm
3. Accessibility for users
3.1 Are "alt" attributes used for all descriptive images?
Provide a text equivalent for every non-text element
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-text-equivalent
3.2 Does the site use relative units rather than absolute units for text size?
Use relative rather than absolute units in markup language attribute values and style sheet property values'.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-relative-units
More:
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-relative-units
CODE
http://www.clagnut.com/blog/348/
3.3 Do any aspects of the layout break if font size is increased?
Try this simple test. Look at your website in a browser that supports easy incrementation of font size. Now increase your browser's font size. And again. And again... Look at your site. Does the page layout still hold together? It is dangerous for developers to assume that everyone browses using default font sizes.
3.4 Does the site use visible skip menus?
A method shall be provided that permits users to skip repetitive navigation links.
CODE
http://www.section508.gov/index.cfm?FuseAction=Content&ID=12
Group related links, identify the group (for user agents), and, until user agents do so, provide a way to bypass the group.
CODE
http://www.w3.org/TR/WCAG10-TECHS/#tech-group-links
...blind visitors are not the only ones inconvenienced by too many links in a navigation area. Recall that a mobility-impaired person with poor adaptive technology might be stuck tabbing through that morass.
CODE
http://joeclark.org/book/sashay/serialization/Chapter08.html#h4-2020
More:
CODE
http://www.niehs.nih.gov/websmith/508/o.htm
3.5 Does the site use accessible forms?
Forms aren't the easiest of things to use for people with disabilities. Navigating around a page with written content is one thing, hopping between form fields and inputting information is another.
CODE
http://www.htmldog.com/guides/htmladvanced/forms/
More:
CODE
http://www.webstandards.org/learn/tutorials/accessible-forms/01-accessible-forms.html
CODE
http://www.accessify.com/tools-and-wizards/accessible-form-builder.asp
CODE
http://accessify.com/tutorials/better-accessible-forms.asp
3.6 Does the site use accessible tables?
For data tables, identify row and column headers... For data tables that have two or more logical levels of row or column headers, use markup to associate data cells and header cells.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-table-headers
More:
CODE
http://www.bcc.ctc.edu/webpublishing/ada/resources/tables.asp
CODE
http://www.accessify.com/tools-and-wizards/accessible-table-builder_step1.asp
CODE
http://www.webaim.org/techniques/tables/
3.7 Is there sufficient colour brightness/contrasts?
Ensure that foreground and background colour combinations provide sufficient contrast when viewed by someone having colour deficits.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-colour-contrast
More:
CODE
http://www.juicystudio.com/services/colourcontrast.asp
3.8 Is colour alone used for critical information?
Ensure that all information conveyed with colour is also available without colour, for example from context or markup.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-colour-convey
There are basically three types of colour deficiency; Deuteranope (a form of red/green colour deficit), Protanope (another form of red/green colour deficit) and Tritanope (a blue/yellow deficit- very rare).
More:
CODE
http://colourfilter.wickline.org/
CODE
http://www.toledo-bend.com/colourblind/Ishihara.html
CODE
http://www.vischeck.com/vischeck/vischeckURL.php
3.9 Is there delayed responsiveness for dropdown menus?
Users with reduced motor skills may find dropdown menus hard to use if responsiveness is set too fast.
3.10 Are all links descriptive?
Link text should be meaningful enough to make sense when read out of context - either on its own or as part of a sequence of links. Link text should also be terse.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-meaningful-links
4. Accessibility for devices.
4.1 Does the site work acceptably across modern and older browsers?
Before starting to build a CSS-based layout, you should decide which browsers to support and to what level you intend to support them.
CODE
http://www.maxdesign.com.au/presentation/process/index_step01.cfm
4.2 Is the content accessible with CSS switched off or not supported?
Some people may visit your site with either a browser that does not support CSS or a browser with CSS switched off. In content is structured well, this will not be an issue.
4.3 Is the content accessible with images switched off or not supported?
Some people browse websites with images switched off - especially people on very slow connections. Content should still be accessible for these people.
4.4 Does the site work in text browsers such as Lynx?
This is like a combination of images and CSS switched off. A text-based browser will rely on well structured content to provide meaning.
More:
CODE
http://www.delorie.com/web/lynxview
4.5 Does the site work well when printed?
You can take any (X)HTML document and simply style it for print, without having to touch the markup.
CODE
http://www.alistapart.com/articles/goingtoprint/
More:
CODE
http://www.d.umn.edu/itss/support/Training/Online/webdesign/css.html#print
4.6 Does the site work well in Hand Held devices?
This is a hard one to deal with until hand held devices consistently support their correct media type. However, some layouts work better in current hand-held devices. The importance of supporting hand held devices will depend on target audiences.
4.7 Does the site include detailed metadata?
Metadata is machine understandable information for the web
CODE
http://www.w3.org/Metadata/
Metadata is structured information that is created specifically to describe another resource. In other words, metadata is 'data about data'.
4.8 Does the site work well in a range of browser window sizes?
It is a common assumption amongst developers that average screen sizes are increasing. Some developers assume that the average screen size is now 1024px wide. But what about users with smaller screens and users with hand held devices? Are they part of your target audience and are they being disadvantaged?
5. Basic Usability
5.1 Is there a clear visual hierarchy?
Organise and prioritise the contents of a page by using size, prominence and content relationships.
CODE
http://www.great-web-design-tips.com/web-site-design/165.html
5.2 Are heading levels easy to distinguish?
Use header elements to convey document structure and use them according to specification.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-logical-headings
5.3 Is the site's navigation easy to understand?
Your navigation system should give your visitor a clue as to what page of the site they are currently on and where they can go next.
CODE
http://www.1stsitefree.com/design_nav.htm
5.4 Is the site's navigation consistent?
If each page on your site has a consistent style of presentation, visitors will find it easier to navigate between pages and find information
CODE
http://www.juicystudio.com/tutorial/accessibility/navigation.asp
5.5 Does the site use consistent and appropriate language?
The use of clear and simple language promotes effective communication. Trying to come across as articulate can be as difficult to read as poorly written grammar, especially if the language used isn't the visitor's primary language.
CODE
http://www.juicystudio.com/tutorial/accessibility/clear.asp
5.6 Does the site have a sitemap page and contact page? Are they easy to find?
Most site maps fail to convey multiple levels of the site's information architecture. In usability tests, users often overlook site maps or can't find them. Complexity is also a problem: a map should be a map, not a navigational challenge of its own.
CODE
http://www.useit.com/alertbox/20020106.html
5.7 For large sites, is there a search tool?
While search tools are not needed on smaller sites, and some people will not ever use them, site-specific search tools allow users a choice of navigation options.
5.8 Is there a link to the home page on every page in the site?
Some users like to go back to a site's home page after navigating to content within a site. The home page becomes a base camp for these users, allowing them to regroup before exploring new content.
5.9 Are links underlined?
To maximise the perceived affordance of clickability, colour and underline the link text. Users shouldn't have to guess or scrub the page to find out where they can click.
CODE
http://www.useit.com/alertbox/20040510.html
5.10 Are visited links clearly defined?
Most important, knowing which pages they've already visited frees users from unintentionally revisiting the same pages over and over again.
CODE
http://www.useit.com/alertbox/20040503.html
6. Site management
6.1 Does the site have a meaningful and helpful 404 error page that works from any depth in the site?
You've requested a page - either by typing a URL directly into the address bar or clicking on an out-of-date link and you've found yourself in the middle of cyberspace nowhere. A user-friendly website will give you a helping hand while many others will simply do nothing, relying on the browser's built-in ability to explain what the problem is.
CODE
http://www.alistapart.com/articles/perfect404/
6.2 Does the site use friendly URLs?
Most search engines (with a few exceptions - namely Google) will not index any pages that have a question mark or other character (like an ampersand or equals sign) in the URL... what good is a site if no one can find it?
CODE
http://www.sitepoint.com/article/search-engine-friendly-urls
One of the worst elements of the web from a user interface standpoint is the URL. However, if they're short, logical, and self-correcting, URLs can be acceptably usable
CODE
http://www.merges.net/theory/20010305.html
More:
CODE
http://www.sitepoint.com/article/search-engine-friendly-urls
CODE
http://www.websitegoodies.com/article/32
CODE
http://www.merges.net/theory/20010305.html
6.3 Does the site's URL work without "www"?
While this is not critical, and in some cases is not even possible, it is always good to give people the choice of both options. If a user types your domain name without the www and gets no site, this could disadvantage both the user and you.
6.4 Does the site have a favicon?
A Favicon is a multi-resolution image included on nearly all professionally developed sites. The Favicon allows the webmaster to further promote their site, and to create a more customized appearance within a visitor's browser.
CODE
http://www.favicon.com/
Favicons are definitely not critical. However, if they are not present, they can cause 404 errors in your logs (site statistics). Browsers like IE will request them from the server when a site is bookmarked. If a favicon isn't available, a 404 error may be generated. Therefore, having a favicon could cut down on favicon specific 404 errors. The same is true of a 'robots.txt' file.
The term web standards can mean different things to different people. For some, it is 'table-free sites', for others it is 'using valid code'. However, web standards are much broader than that. A site built to web standards should adhere to standards (HTML, XHTML, XML, CSS, XSLT, DOM, MathML, SVG etc) and pursue best practices (valid code, accessible code, semantically correct code, user-friendly URLs etc).
In other words, a site built to web standards should ideally be lean, clean, CSS-based, accessible, usable and search engine friendly.
About the checklist
This is not an uber-checklist. There are probably many items that could be added. More importantly, it should not be seen as a list of items that must be addressed on every site that you develop. It is simply a guide that can be used:
* to show the breadth of web standards
* as a handy tool for developers during the production phase of websites
* as an aid for developers who are interested in moving towards web standards
The checklist
1.Quality of code
1. Does the site use a correct Doctype?
2. Does the site use a Character set?
3. Does the site use Valid (X)HTML?
4. Does the site use Valid CSS?
5. Does the site use any CSS hacks?
6. Does the site use unnecessary classes or ids?
7. Is the code well structured?
8. Does the site have any broken links?
9. How does the site perform in terms of speed/page size?
10. Does the site have JavaScript errors?
2. Degree of separation between content and presentation
1. Does the site use CSS for all presentation aspects (fonts, colour, padding, borders etc)?
2. Are all decorative images in the CSS, or do they appear in the (X)HTML?
3. Accessibility for users
1. Are "alt" attributes used for all descriptive images?
2. Does the site use relative units rather than absolute units for text size?
3. Do any aspects of the layout break if font size is increased?
4. Does the site use visible skip menus?
5. Does the site use accessible forms?
6. Does the site use accessible tables?
7. Is there sufficient colour brightness/contrasts?
8. Is colour alone used for critical information?
9. Is there delayed responsiveness for dropdown menus (for users with reduced motor skills)?
10. Are all links descriptive (for blind users)?
4. Accessibility for devices
1. Does the site work acceptably across modern and older browsers?
2. Is the content accessible with CSS switched off or not supported?
3. Is the content accessible with images switched off or not supported?
4. Does the site work in text browsers such as Lynx?
5. Does the site work well when printed?
6. Does the site work well in Hand Held devices?
7. Does the site include detailed metadata?
8. Does the site work well in a range of browser window sizes?
5. Basic Usability
1. Is there a clear visual hierarchy?
2. Are heading levels easy to distinguish?
3. Does the site have easy to understand navigation?
4. Does the site use consistent navigation?
5. Are links underlined?
6. Does the site use consistent and appropriate language?
7. Do you have a sitemap page and contact page? Are they easy to find?
8. For large sites, is there a search tool?
9. Is there a link to the home page on every page in the site?
10. Are visited links clearly defined with a unique colour?
6. Site management
1. Does the site have a meaningful and helpful 404 error page that works from any depth in the site?
2. Does the site use friendly URLs?
3. Do your URLs work without "www"?
4. Does the site have a favicon?
1. Quality of code
1.1 Does the site use a correct Doctype?
A doctype (short for 'document type declaration') informs the validator which version of (X)HTML you're using, and must appear at the very top of every web page. Doctypes are a key component of compliant web pages: your markup and CSS won't validate without them.
CODE
http://www.alistapart.com/articles/doctype/
More:
CODE
http://www.w3.org/QA/2002/04/valid-dtd-list.html
CODE
http://css.maxdesign.com.au/listamatic/about-boxmodel.htm
CODE
http://gutfeldt.ch/matthias/articles/doctypeswitch.html
1.2 Does the site use a Character set?
If a user agent (eg. a browser) is unable to detect the character encoding used in a Web document, the user may be presented with unreadable text. This information is particularly important for those maintaining and extending a multilingual site, but declaring the character encoding of the document is important for anyone producing XHTML/HTML or CSS.
CODE
http://www.w3.org/International/tutorials/tutorial-char-enc/
More:
CODE
http://www.w3.org/International/O-charset.html
1.3 Does the site use Valid (X)HTML?
Valid code will render faster than code with errors. Valid code will render better than invalid code. Browsers are becoming more standards compliant, and it is becoming increasingly necessary to write valid and standards compliant HTML.
CODE
http://www.maxdesign.com.au/presentation/sit2003/06.htm
More:
CODE
http://validator.w3.org/
1.4 Does the site use Valid CSS?
You need to make sure that there aren't any errors in either your HTML or your CSS, since mistakes in either place can result in botched document appearance.
CODE
http://www.meyerweb.com/eric/articles/webrev/199904.html
More:
CODE
http://jigsaw.w3.org/css-validator/
1.5 Does the site use any CSS hacks?
Basically, hacks come down to personal choice, the amount of knowledge you have of workarounds, the specific design you are trying to achieve.
CODE
http://www.mail-archive.com/wsg@webstandardsgroup.org/msg05823.html
More:
CODE
http://css-discuss.incutio.com/?page=CssHack
CODE
http://css-discuss.incutio.com/?page=ToHackOrNotToHack
CODE
http://centricle.com/ref/css/filters/
1.6 Does the site use unnecessary classes or ids?
I've noticed that developers learning new skills often end up with good CSS but poor XHTML. Specifically, the HTML code tends to be full of unnecessary divs and ids. This results in fairly meaningless HTML and bloated style sheets.
CODE
http://www.clagnut.com/blog/228/
1.7 Is the code well structured?
Semantically correct markup uses html elements for their given purpose. Well structured HTML has semantic meaning for a wide range of user agents (browsers without style sheets, text browsers, PDAs, search engines etc.)
CODE
http://www.maxdesign.com.au/presentation/benefits/index04.htm
More:
CODE
http://www.w3.org/2003/12/semantic-extractor.html
1.8 Does the site have any broken links?
Broken links can frustrate users and potentially drive customers away. Broken links can also keep search engines from properly indexing your site.
More:
CODE
http://validator.w3.org/checklink
1.9 How does the site perform in terms of speed/page size?
Don't make me wait... That's the message users give us in survey after survey. Even broadband users can suffer the slow-loading blues.
CODE
http://www.websiteoptimization.com/speed/
1.10 Does the site have JavaScript errors?
Internet Explore for Windows allows you to turn on a debugger that will pop up a new window and let you know there are javascript errors on your site. This is available under 'Internet Options' on the Advanced tab. Uncheck 'Disable script debugging'.
2. Degree of separation between content and presentation
2.1 Does the site use CSS for all presentation aspects (fonts, colour, padding, borders etc)?
Use style sheets to control layout and presentation.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-style-sheets
2.2 Are all decorative images in the CSS, or do they appear in the (X)HTML?
The aim for web developers is to remove all presentation from the html code, leaving it clean and semantically correct.
CODE
http://www.maxdesign.com.au/presentation/benefits/index07.htm
3. Accessibility for users
3.1 Are "alt" attributes used for all descriptive images?
Provide a text equivalent for every non-text element
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-text-equivalent
3.2 Does the site use relative units rather than absolute units for text size?
Use relative rather than absolute units in markup language attribute values and style sheet property values'.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-relative-units
More:
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-relative-units
CODE
http://www.clagnut.com/blog/348/
3.3 Do any aspects of the layout break if font size is increased?
Try this simple test. Look at your website in a browser that supports easy incrementation of font size. Now increase your browser's font size. And again. And again... Look at your site. Does the page layout still hold together? It is dangerous for developers to assume that everyone browses using default font sizes.
3.4 Does the site use visible skip menus?
A method shall be provided that permits users to skip repetitive navigation links.
CODE
http://www.section508.gov/index.cfm?FuseAction=Content&ID=12
Group related links, identify the group (for user agents), and, until user agents do so, provide a way to bypass the group.
CODE
http://www.w3.org/TR/WCAG10-TECHS/#tech-group-links
...blind visitors are not the only ones inconvenienced by too many links in a navigation area. Recall that a mobility-impaired person with poor adaptive technology might be stuck tabbing through that morass.
CODE
http://joeclark.org/book/sashay/serialization/Chapter08.html#h4-2020
More:
CODE
http://www.niehs.nih.gov/websmith/508/o.htm
3.5 Does the site use accessible forms?
Forms aren't the easiest of things to use for people with disabilities. Navigating around a page with written content is one thing, hopping between form fields and inputting information is another.
CODE
http://www.htmldog.com/guides/htmladvanced/forms/
More:
CODE
http://www.webstandards.org/learn/tutorials/accessible-forms/01-accessible-forms.html
CODE
http://www.accessify.com/tools-and-wizards/accessible-form-builder.asp
CODE
http://accessify.com/tutorials/better-accessible-forms.asp
3.6 Does the site use accessible tables?
For data tables, identify row and column headers... For data tables that have two or more logical levels of row or column headers, use markup to associate data cells and header cells.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-table-headers
More:
CODE
http://www.bcc.ctc.edu/webpublishing/ada/resources/tables.asp
CODE
http://www.accessify.com/tools-and-wizards/accessible-table-builder_step1.asp
CODE
http://www.webaim.org/techniques/tables/
3.7 Is there sufficient colour brightness/contrasts?
Ensure that foreground and background colour combinations provide sufficient contrast when viewed by someone having colour deficits.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-colour-contrast
More:
CODE
http://www.juicystudio.com/services/colourcontrast.asp
3.8 Is colour alone used for critical information?
Ensure that all information conveyed with colour is also available without colour, for example from context or markup.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-colour-convey
There are basically three types of colour deficiency; Deuteranope (a form of red/green colour deficit), Protanope (another form of red/green colour deficit) and Tritanope (a blue/yellow deficit- very rare).
More:
CODE
http://colourfilter.wickline.org/
CODE
http://www.toledo-bend.com/colourblind/Ishihara.html
CODE
http://www.vischeck.com/vischeck/vischeckURL.php
3.9 Is there delayed responsiveness for dropdown menus?
Users with reduced motor skills may find dropdown menus hard to use if responsiveness is set too fast.
3.10 Are all links descriptive?
Link text should be meaningful enough to make sense when read out of context - either on its own or as part of a sequence of links. Link text should also be terse.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-meaningful-links
4. Accessibility for devices.
4.1 Does the site work acceptably across modern and older browsers?
Before starting to build a CSS-based layout, you should decide which browsers to support and to what level you intend to support them.
CODE
http://www.maxdesign.com.au/presentation/process/index_step01.cfm
4.2 Is the content accessible with CSS switched off or not supported?
Some people may visit your site with either a browser that does not support CSS or a browser with CSS switched off. In content is structured well, this will not be an issue.
4.3 Is the content accessible with images switched off or not supported?
Some people browse websites with images switched off - especially people on very slow connections. Content should still be accessible for these people.
4.4 Does the site work in text browsers such as Lynx?
This is like a combination of images and CSS switched off. A text-based browser will rely on well structured content to provide meaning.
More:
CODE
http://www.delorie.com/web/lynxview
4.5 Does the site work well when printed?
You can take any (X)HTML document and simply style it for print, without having to touch the markup.
CODE
http://www.alistapart.com/articles/goingtoprint/
More:
CODE
http://www.d.umn.edu/itss/support/Training/Online/webdesign/css.html#print
4.6 Does the site work well in Hand Held devices?
This is a hard one to deal with until hand held devices consistently support their correct media type. However, some layouts work better in current hand-held devices. The importance of supporting hand held devices will depend on target audiences.
4.7 Does the site include detailed metadata?
Metadata is machine understandable information for the web
CODE
http://www.w3.org/Metadata/
Metadata is structured information that is created specifically to describe another resource. In other words, metadata is 'data about data'.
4.8 Does the site work well in a range of browser window sizes?
It is a common assumption amongst developers that average screen sizes are increasing. Some developers assume that the average screen size is now 1024px wide. But what about users with smaller screens and users with hand held devices? Are they part of your target audience and are they being disadvantaged?
5. Basic Usability
5.1 Is there a clear visual hierarchy?
Organise and prioritise the contents of a page by using size, prominence and content relationships.
CODE
http://www.great-web-design-tips.com/web-site-design/165.html
5.2 Are heading levels easy to distinguish?
Use header elements to convey document structure and use them according to specification.
CODE
http://www.w3.org/TR/WCAG10/wai-pageauth.html#tech-logical-headings
5.3 Is the site's navigation easy to understand?
Your navigation system should give your visitor a clue as to what page of the site they are currently on and where they can go next.
CODE
http://www.1stsitefree.com/design_nav.htm
5.4 Is the site's navigation consistent?
If each page on your site has a consistent style of presentation, visitors will find it easier to navigate between pages and find information
CODE
http://www.juicystudio.com/tutorial/accessibility/navigation.asp
5.5 Does the site use consistent and appropriate language?
The use of clear and simple language promotes effective communication. Trying to come across as articulate can be as difficult to read as poorly written grammar, especially if the language used isn't the visitor's primary language.
CODE
http://www.juicystudio.com/tutorial/accessibility/clear.asp
5.6 Does the site have a sitemap page and contact page? Are they easy to find?
Most site maps fail to convey multiple levels of the site's information architecture. In usability tests, users often overlook site maps or can't find them. Complexity is also a problem: a map should be a map, not a navigational challenge of its own.
CODE
http://www.useit.com/alertbox/20020106.html
5.7 For large sites, is there a search tool?
While search tools are not needed on smaller sites, and some people will not ever use them, site-specific search tools allow users a choice of navigation options.
5.8 Is there a link to the home page on every page in the site?
Some users like to go back to a site's home page after navigating to content within a site. The home page becomes a base camp for these users, allowing them to regroup before exploring new content.
5.9 Are links underlined?
To maximise the perceived affordance of clickability, colour and underline the link text. Users shouldn't have to guess or scrub the page to find out where they can click.
CODE
http://www.useit.com/alertbox/20040510.html
5.10 Are visited links clearly defined?
Most important, knowing which pages they've already visited frees users from unintentionally revisiting the same pages over and over again.
CODE
http://www.useit.com/alertbox/20040503.html
6. Site management
6.1 Does the site have a meaningful and helpful 404 error page that works from any depth in the site?
You've requested a page - either by typing a URL directly into the address bar or clicking on an out-of-date link and you've found yourself in the middle of cyberspace nowhere. A user-friendly website will give you a helping hand while many others will simply do nothing, relying on the browser's built-in ability to explain what the problem is.
CODE
http://www.alistapart.com/articles/perfect404/
6.2 Does the site use friendly URLs?
Most search engines (with a few exceptions - namely Google) will not index any pages that have a question mark or other character (like an ampersand or equals sign) in the URL... what good is a site if no one can find it?
CODE
http://www.sitepoint.com/article/search-engine-friendly-urls
One of the worst elements of the web from a user interface standpoint is the URL. However, if they're short, logical, and self-correcting, URLs can be acceptably usable
CODE
http://www.merges.net/theory/20010305.html
More:
CODE
http://www.sitepoint.com/article/search-engine-friendly-urls
CODE
http://www.websitegoodies.com/article/32
CODE
http://www.merges.net/theory/20010305.html
6.3 Does the site's URL work without "www"?
While this is not critical, and in some cases is not even possible, it is always good to give people the choice of both options. If a user types your domain name without the www and gets no site, this could disadvantage both the user and you.
6.4 Does the site have a favicon?
A Favicon is a multi-resolution image included on nearly all professionally developed sites. The Favicon allows the webmaster to further promote their site, and to create a more customized appearance within a visitor's browser.
CODE
http://www.favicon.com/
Favicons are definitely not critical. However, if they are not present, they can cause 404 errors in your logs (site statistics). Browsers like IE will request them from the server when a site is bookmarked. If a favicon isn't available, a 404 error may be generated. Therefore, having a favicon could cut down on favicon specific 404 errors. The same is true of a 'robots.txt' file.
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23 Ways To Speed WinXP, Not only Defrag
Since defragging the disk won't do much to improve Windows XP performance, here are 23 suggestions that will. Each can enhance the performance and reliability of your customers' PCs. Best of all, most of them will cost you nothing.
1.) To decrease a system's boot time and increase system performance, use the money you save by not buying defragmentation software -- the built-in Windows defragmenter works just fine -- and instead equip the computer with an Ultra-133 or Serial ATA hard drive with 8-MB cache buffer.
2.) If a PC has less than 512 MB of RAM, add more memory. This is a relatively inexpensive and easy upgrade that can dramatically improve system performance.
3.) Ensure that Windows XP is utilizing the NTFS file system. If you're not sure, here's how to check: First, double-click the My Computer icon, right-click on the C: Drive, then select Properties. Next, examine the File System type; if it says FAT32, then back-up any important data. Next, click Start, click Run, type CMD, and then click OK. At the prompt, type CONVERT C: /FS:NTFS and press the Enter key. This process may take a while; it's important that the computer be uninterrupted and virus-free. The file system used by the bootable drive will be either FAT32 or NTFS. I highly recommend NTFS for its superior security, reliability, and efficiency with larger disk drives.
4.) Disable file indexing. The indexing service extracts information from documents and other files on the hard drive and creates a "searchable keyword index." As you can imagine, this process can be quite taxing on any system.
The idea is that the user can search for a word, phrase, or property inside a document, should they have hundreds or thousands of documents and not know the file name of the document they want. Windows XP's built-in search functionality can still perform these kinds of searches without the Indexing service. It just takes longer. The OS has to open each file at the time of the request to help find what the user is looking for.
Most people never need this feature of search. Those who do are typically in a large corporate environment where thousands of documents are located on at least one server. But if you're a typical system builder, most of your clients are small and medium businesses. And if your clients have no need for this search feature, I recommend disabling it.
Here's how: First, double-click the My Computer icon. Next, right-click on the C: Drive, then select Properties. Uncheck "Allow Indexing Service to index this disk for fast file searching." Next, apply changes to "C: subfolders and files," and click OK. If a warning or error message appears (such as "Access is denied"), click the Ignore All button.
5.) Update the PC's video and motherboard chipset drivers. Also, update and configure the BIOS. For more information on how to configure your BIOS properly, see this article on my site.
6.) Empty the Windows Prefetch folder every three months or so. Windows XP can "prefetch" portions of data and applications that are used frequently. This makes processes appear to load faster when called upon by the user. That's fine. But over time, the prefetch folder may become overloaded with references to files and applications no longer in use. When that happens, Windows XP is wasting time, and slowing system performance, by pre-loading them. Nothing critical is in this folder, and the entire contents are safe to delete.
7.) Once a month, run a disk cleanup. Here's how: Double-click the My Computer icon. Then right-click on the C: drive and select Properties. Click the Disk Cleanup button -- it's just to the right of the Capacity pie graph -- and delete all temporary files.
8.) In your Device Manager, double-click on the IDE ATA/ATAPI Controllers device, and ensure that DMA is enabled for each drive you have connected to the Primary and Secondary controller. Do this by double-clicking on Primary IDE Channel. Then click the Advanced Settings tab. Ensure the Transfer Mode is set to "DMA if available" for both Device 0 and Device 1. Then repeat this process with the Secondary IDE Channel.
9.) Upgrade the cabling. As hard-drive technology improves, the cabling requirements to achieve these performance boosts have become more stringent. Be sure to use 80-wire Ultra-133 cables on all of your IDE devices with the connectors properly assigned to the matching Master/Slave/Motherboard sockets. A single device must be at the end of the cable; connecting a single drive to the middle connector on a ribbon cable will cause signaling problems. With Ultra DMA hard drives, these signaling problems will prevent the drive from performing at its maximum potential. Also, because these cables inherently support "cable select," the location of each drive on the cable is important. For these reasons, the cable is designed so drive positioning is explicitly clear.
10.) Remove all spyware from the computer. Use free programs such as AdAware by Lavasoft or SpyBot Search & Destroy. Once these programs are installed, be sure to check for and download any updates before starting your search. Anything either program finds can be safely removed. Any free software that requires spyware to run will no longer function once the spyware portion has been removed; if your customer really wants the program even though it contains spyware, simply reinstall it. For more information on removing Spyware visit this Web Pro News page.
11.) Remove any unnecessary programs and/or items from Windows Startup routine using the MSCONFIG utility. Here's how: First, click Start, click Run, type MSCONFIG, and click OK. Click the StartUp tab, then uncheck any items you don't want to start when Windows starts. Unsure what some items are? Visit the WinTasks Process Library. It contains known system processes, applications, as well as spyware references and explanations. Or quickly identify them by searching for the filenames using Google or another Web search engine.
12.) Remove any unnecessary or unused programs from the Add/Remove Programs section of the Control Panel.
13.) Turn off any and all unnecessary animations, and disable active desktop. In fact, for optimal performance, turn off all animations. Windows XP offers many different settings in this area. Here's how to do it: First click on the System icon in the Control Panel. Next, click on the Advanced tab. Select the Settings button located under Performance. Feel free to play around with the options offered here, as nothing you can change will alter the reliability of the computer -- only its responsiveness.
14.) If your customer is an advanced user who is comfortable editing their registry, try some of the performance registry tweaks offered at Tweak XP.
15.) Visit Microsoft's Windows update site regularly, and download all updates labeled Critical. Download any optional updates at your discretion.
16.) Update the customer's anti-virus software on a weekly, even daily, basis. Make sure they have only one anti-virus software package installed. Mixing anti-virus software is a sure way to spell disaster for performance and reliability.
17.) Make sure the customer has fewer than 500 type fonts installed on their computer. The more fonts they have, the slower the system will become. While Windows XP handles fonts much more efficiently than did the previous versions of Windows, too many fonts -- that is, anything over 500 -- will noticeably tax the system.
18.) Do not partition the hard drive. Windows XP's NTFS file system runs more efficiently on one large partition. The data is no safer on a separate partition, and a reformat is never necessary to reinstall an operating system. The same excuses people offer for using partitions apply to using a folder instead. For example, instead of putting all your data on the D: drive, put it in a folder called "D drive." You'll achieve the same organizational benefits that a separate partition offers, but without the degradation in system performance. Also, your free space won't be limited by the size of the partition; instead, it will be limited by the size of the entire hard drive. This means you won't need to resize any partitions, ever. That task can be time-consuming and also can result in lost data.
19.) Check the system's RAM to ensure it is operating properly. I recommend using a free program called MemTest86. The download will make a bootable CD or diskette (your choice), which will run 10 extensive tests on the PC's memory automatically after you boot to the disk you created. Allow all tests to run until at least three passes of the 10 tests are completed. If the program encounters any errors, turn off and unplug the computer, remove a stick of memory (assuming you have more than one), and run the test again. Remember, bad memory cannot be repaired, but only replaced.
20.) If the PC has a CD or DVD recorder, check the drive manufacturer's Web site for updated firmware. In some cases you'll be able to upgrade the recorder to a faster speed. Best of all, it's free.
21.) Disable unnecessary services. Windows XP loads a lot of services that your customer most likely does not need. To determine which services you can disable for your client, visit the Black Viper site for Windows XP configurations.
22.) If you're sick of a single Windows Explorer window crashing and then taking the rest of your OS down with it, then follow this tip: open My Computer, click on Tools, then Folder Options. Now click on the View tab. Scroll down to "Launch folder windows in a separate process," and enable this option. You'll have to reboot your machine for this option to take effect.
23.) At least once a year, open the computer's cases and blow out all the dust and debris. While you're in there, check that all the fans are turning properly. Also inspect the motherboard capacitors for bulging or leaks. For more information on this leaking-capacitor phenomena, you can read numerous articles on my site.
Following any of these suggestions should result in noticeable improvements to the performance and reliability of your customers' computers. If you still want to defrag a disk, remember that the main benefit will be to make your data more retrievable in the event of a crashed drive.
1.) To decrease a system's boot time and increase system performance, use the money you save by not buying defragmentation software -- the built-in Windows defragmenter works just fine -- and instead equip the computer with an Ultra-133 or Serial ATA hard drive with 8-MB cache buffer.
2.) If a PC has less than 512 MB of RAM, add more memory. This is a relatively inexpensive and easy upgrade that can dramatically improve system performance.
3.) Ensure that Windows XP is utilizing the NTFS file system. If you're not sure, here's how to check: First, double-click the My Computer icon, right-click on the C: Drive, then select Properties. Next, examine the File System type; if it says FAT32, then back-up any important data. Next, click Start, click Run, type CMD, and then click OK. At the prompt, type CONVERT C: /FS:NTFS and press the Enter key. This process may take a while; it's important that the computer be uninterrupted and virus-free. The file system used by the bootable drive will be either FAT32 or NTFS. I highly recommend NTFS for its superior security, reliability, and efficiency with larger disk drives.
4.) Disable file indexing. The indexing service extracts information from documents and other files on the hard drive and creates a "searchable keyword index." As you can imagine, this process can be quite taxing on any system.
The idea is that the user can search for a word, phrase, or property inside a document, should they have hundreds or thousands of documents and not know the file name of the document they want. Windows XP's built-in search functionality can still perform these kinds of searches without the Indexing service. It just takes longer. The OS has to open each file at the time of the request to help find what the user is looking for.
Most people never need this feature of search. Those who do are typically in a large corporate environment where thousands of documents are located on at least one server. But if you're a typical system builder, most of your clients are small and medium businesses. And if your clients have no need for this search feature, I recommend disabling it.
Here's how: First, double-click the My Computer icon. Next, right-click on the C: Drive, then select Properties. Uncheck "Allow Indexing Service to index this disk for fast file searching." Next, apply changes to "C: subfolders and files," and click OK. If a warning or error message appears (such as "Access is denied"), click the Ignore All button.
5.) Update the PC's video and motherboard chipset drivers. Also, update and configure the BIOS. For more information on how to configure your BIOS properly, see this article on my site.
6.) Empty the Windows Prefetch folder every three months or so. Windows XP can "prefetch" portions of data and applications that are used frequently. This makes processes appear to load faster when called upon by the user. That's fine. But over time, the prefetch folder may become overloaded with references to files and applications no longer in use. When that happens, Windows XP is wasting time, and slowing system performance, by pre-loading them. Nothing critical is in this folder, and the entire contents are safe to delete.
7.) Once a month, run a disk cleanup. Here's how: Double-click the My Computer icon. Then right-click on the C: drive and select Properties. Click the Disk Cleanup button -- it's just to the right of the Capacity pie graph -- and delete all temporary files.
8.) In your Device Manager, double-click on the IDE ATA/ATAPI Controllers device, and ensure that DMA is enabled for each drive you have connected to the Primary and Secondary controller. Do this by double-clicking on Primary IDE Channel. Then click the Advanced Settings tab. Ensure the Transfer Mode is set to "DMA if available" for both Device 0 and Device 1. Then repeat this process with the Secondary IDE Channel.
9.) Upgrade the cabling. As hard-drive technology improves, the cabling requirements to achieve these performance boosts have become more stringent. Be sure to use 80-wire Ultra-133 cables on all of your IDE devices with the connectors properly assigned to the matching Master/Slave/Motherboard sockets. A single device must be at the end of the cable; connecting a single drive to the middle connector on a ribbon cable will cause signaling problems. With Ultra DMA hard drives, these signaling problems will prevent the drive from performing at its maximum potential. Also, because these cables inherently support "cable select," the location of each drive on the cable is important. For these reasons, the cable is designed so drive positioning is explicitly clear.
10.) Remove all spyware from the computer. Use free programs such as AdAware by Lavasoft or SpyBot Search & Destroy. Once these programs are installed, be sure to check for and download any updates before starting your search. Anything either program finds can be safely removed. Any free software that requires spyware to run will no longer function once the spyware portion has been removed; if your customer really wants the program even though it contains spyware, simply reinstall it. For more information on removing Spyware visit this Web Pro News page.
11.) Remove any unnecessary programs and/or items from Windows Startup routine using the MSCONFIG utility. Here's how: First, click Start, click Run, type MSCONFIG, and click OK. Click the StartUp tab, then uncheck any items you don't want to start when Windows starts. Unsure what some items are? Visit the WinTasks Process Library. It contains known system processes, applications, as well as spyware references and explanations. Or quickly identify them by searching for the filenames using Google or another Web search engine.
12.) Remove any unnecessary or unused programs from the Add/Remove Programs section of the Control Panel.
13.) Turn off any and all unnecessary animations, and disable active desktop. In fact, for optimal performance, turn off all animations. Windows XP offers many different settings in this area. Here's how to do it: First click on the System icon in the Control Panel. Next, click on the Advanced tab. Select the Settings button located under Performance. Feel free to play around with the options offered here, as nothing you can change will alter the reliability of the computer -- only its responsiveness.
14.) If your customer is an advanced user who is comfortable editing their registry, try some of the performance registry tweaks offered at Tweak XP.
15.) Visit Microsoft's Windows update site regularly, and download all updates labeled Critical. Download any optional updates at your discretion.
16.) Update the customer's anti-virus software on a weekly, even daily, basis. Make sure they have only one anti-virus software package installed. Mixing anti-virus software is a sure way to spell disaster for performance and reliability.
17.) Make sure the customer has fewer than 500 type fonts installed on their computer. The more fonts they have, the slower the system will become. While Windows XP handles fonts much more efficiently than did the previous versions of Windows, too many fonts -- that is, anything over 500 -- will noticeably tax the system.
18.) Do not partition the hard drive. Windows XP's NTFS file system runs more efficiently on one large partition. The data is no safer on a separate partition, and a reformat is never necessary to reinstall an operating system. The same excuses people offer for using partitions apply to using a folder instead. For example, instead of putting all your data on the D: drive, put it in a folder called "D drive." You'll achieve the same organizational benefits that a separate partition offers, but without the degradation in system performance. Also, your free space won't be limited by the size of the partition; instead, it will be limited by the size of the entire hard drive. This means you won't need to resize any partitions, ever. That task can be time-consuming and also can result in lost data.
19.) Check the system's RAM to ensure it is operating properly. I recommend using a free program called MemTest86. The download will make a bootable CD or diskette (your choice), which will run 10 extensive tests on the PC's memory automatically after you boot to the disk you created. Allow all tests to run until at least three passes of the 10 tests are completed. If the program encounters any errors, turn off and unplug the computer, remove a stick of memory (assuming you have more than one), and run the test again. Remember, bad memory cannot be repaired, but only replaced.
20.) If the PC has a CD or DVD recorder, check the drive manufacturer's Web site for updated firmware. In some cases you'll be able to upgrade the recorder to a faster speed. Best of all, it's free.
21.) Disable unnecessary services. Windows XP loads a lot of services that your customer most likely does not need. To determine which services you can disable for your client, visit the Black Viper site for Windows XP configurations.
22.) If you're sick of a single Windows Explorer window crashing and then taking the rest of your OS down with it, then follow this tip: open My Computer, click on Tools, then Folder Options. Now click on the View tab. Scroll down to "Launch folder windows in a separate process," and enable this option. You'll have to reboot your machine for this option to take effect.
23.) At least once a year, open the computer's cases and blow out all the dust and debris. While you're in there, check that all the fans are turning properly. Also inspect the motherboard capacitors for bulging or leaks. For more information on this leaking-capacitor phenomena, you can read numerous articles on my site.
Following any of these suggestions should result in noticeable improvements to the performance and reliability of your customers' computers. If you still want to defrag a disk, remember that the main benefit will be to make your data more retrievable in the event of a crashed drive.
16x Dvd+-rw Dl Dvd Writer Comparison Guide
Source:
CODE
http://www.extrememhz.com/dlcomp-p1.shtml
Since the introduction of double layer DVD writers, the interest has been quite overwhelming and is why we keep bringing you reviews of these highly popular drives. The anticipation has now turned into down right obsession and it has become a key component in any current or new system build, thanks to the declining prices and continued media hype. Manufacturers are quite aware of the fascination and is why they have each been releasing their own products which excel in at least one area of the testing methodology used in most reviews. This has led to some confusion as to which drive is best suited for the individuals needs. Today, we compare four 16x double layer drives and highlight both the strong and weak points in order to give you a better idea of which drive is best suited for you.
In this comparison guide, we will be looking at four of the top 16x drives to hit the market, the Pioneer DVR-108, NEC ND3500A, Lite-On SOHW-1633s and the new LG GSA-4160B. We will cover everything from design and features to performance and price. Let's begin with a quick look at each of these drives.
As far as the front bezel design goes, the LG-GSA4160B is by far the most attractive drive of the bunch. However, for those who are looking for a headphone jack, the Lite-On drive is the only DL writer offering a headphone jack, as well as volume control. The Pioneer and NEC drives, in my opinion, are the ugliest drives, with a very plain look that just wants to make you hide the drive period. Although we only obtained the 4160B in black, all these drives are offered with both white and black bezels. If you opt for the more expensive Pioneer "XL" model, it has the most impressive looks of any drive in the market. However, this will come at a very hefty price tag, considering they contain different firmware as well that offer a few extra features.
So, we have determined which is the sexiest-looking drive, but what about performance? I've done some extensive testing on each model to determine which is indeed the most impressive of the bunch. But before we show you performance results, let's briefly look at the features and what they have to offer.
Features
Each one of these drives has there disappointments when it comes to features. Let's compare each to see what they really offer.
DVD Writing
DVD+R DVD-R DVD+RW DVD-RW
LG GSA-4160B 16x 8x 4x 4x
Lite-On SOHW-1633s 16x 8x 4x 4x
NEC ND-3500A 16x 16x 4x 4x
Pioneer DVR-108 16x 16x 4x 4x
While all these drives are indeed 16x models, only two will write to both formats at this speed. The LG GSA-4160B and the Lite-On SOHW-1633s only support 8x DVD-R writing. So if you are one who only prefers this format, the NEC or Pioneer would be the best choice. All of these drives support writing to DVD re-writable media at 4x.
DVD+R9 Double Layer Writing
Write Speed
LG GSA-4160B 2.4x
Lite-On SOHW-1633s 2.4x
NEC ND-3500A 4x
Pioneer DVR-108 4x
The major disappointment with both the LG and the Lite-On 16x drives is the lack of 4x double layer writing support. Pioneer and NEC seem to be the only manufacturers to jump in and release second generation double layer drives supporting much faster 4x writing. In fact, the jump from 2.4x to 4x is quite substantial as we will show you a bit later in this comparison.
DVD-RAM Support
Supported Read Write
LG GSA-4160B YES 5x 5x
Lite-On SOHW-1633s NO NO NO
NEC ND-3500A NO NO NO
Pioneer DVR-108 YES 2x NO
Now this is where both the LG GSA-4120B and GSA-4160B shine above the rest. In fact, it is what has made these drives the most popular DVD writers on the market. Unlike the rest in the roundup, it is a triple format burner, offering full support for DVD-RAM media. The other drives do not support it, with the exception of the Pioneer DVR-108 which supports reading of DVD-RAM discs at 2x. I personally don't see the point in offering only read capabilities, but it's at least one extra feature added to distinguish it from the rest. Fast 5x support of the LG GSA-4160 will actually be tested a bit later in this article.
CDR Writing
CDR CDRW
LG GSA-4160B 40x 24x
Lite-On SOHW-1633s 48x 24x
NEC ND-3500A 48x 24x
Pioneer DVR-108 32x 24x
The fastest CDR writers of the bunch are the Lite-On SOHW-1633s and the NEC ND-3500A. With their support for 48x writing, they make a great all-in-one drive for many users. The only drive lacking in this lineup is the Pioneer DVR-108. Why they opted for only 32x writing is still quite puzzling and is actually why I have found that many are choosing the NEC over the Pioneer. The LG GSA-4160B should not be left out of consideration though. We will show you later that the difference in write times between 40x and 48x is not much to brag about.
Bitsetting Support
One feature I've found that is most important for many users is bitsetting support. Let's compare these drives and see what they offer.
DVD+R/RW Support DVD+R DL Support
LG GSA-4160B NO NO
Lite-On SOHW-1633s YES NO
NEC ND-3500A NO YES
Pioneer DVR-108 NO YES
The LG GSA-4160B does not offer bitsetting support out of the box. However, it is very likely that you will be able to obtain support through an excellent third-party tool called DVDInfo Pro. Right now, they only support the GSA-4120B, but I'm confident with the author that support for this drive will be likely. LG firmware is very hard to hack, however some select few have been able to do so. Using Lite-On's booktype utility, you can change the booktype of DVD+R/RW media, however, the firmware does not automatically change booktype of DVD+R DL discs to DVD-ROM like the NEC and Pioneer models do.
Additional Features
As far as other features go, all these drives have a 2MB buffer but offer some sort of buffer under-run protection, which all work exceptionally well. This is especially useful if you will be burning discs at 16x, which I personally don't recommend just yet. As our individual tests of these drives revealed, burning at this speed is quite unstable, with the exception of the Lite-On SOHW-1633s.
CODE
http://www.extrememhz.com/dlcomp-p1.shtml
Since the introduction of double layer DVD writers, the interest has been quite overwhelming and is why we keep bringing you reviews of these highly popular drives. The anticipation has now turned into down right obsession and it has become a key component in any current or new system build, thanks to the declining prices and continued media hype. Manufacturers are quite aware of the fascination and is why they have each been releasing their own products which excel in at least one area of the testing methodology used in most reviews. This has led to some confusion as to which drive is best suited for the individuals needs. Today, we compare four 16x double layer drives and highlight both the strong and weak points in order to give you a better idea of which drive is best suited for you.
In this comparison guide, we will be looking at four of the top 16x drives to hit the market, the Pioneer DVR-108, NEC ND3500A, Lite-On SOHW-1633s and the new LG GSA-4160B. We will cover everything from design and features to performance and price. Let's begin with a quick look at each of these drives.
As far as the front bezel design goes, the LG-GSA4160B is by far the most attractive drive of the bunch. However, for those who are looking for a headphone jack, the Lite-On drive is the only DL writer offering a headphone jack, as well as volume control. The Pioneer and NEC drives, in my opinion, are the ugliest drives, with a very plain look that just wants to make you hide the drive period. Although we only obtained the 4160B in black, all these drives are offered with both white and black bezels. If you opt for the more expensive Pioneer "XL" model, it has the most impressive looks of any drive in the market. However, this will come at a very hefty price tag, considering they contain different firmware as well that offer a few extra features.
So, we have determined which is the sexiest-looking drive, but what about performance? I've done some extensive testing on each model to determine which is indeed the most impressive of the bunch. But before we show you performance results, let's briefly look at the features and what they have to offer.
Features
Each one of these drives has there disappointments when it comes to features. Let's compare each to see what they really offer.
DVD Writing
DVD+R DVD-R DVD+RW DVD-RW
LG GSA-4160B 16x 8x 4x 4x
Lite-On SOHW-1633s 16x 8x 4x 4x
NEC ND-3500A 16x 16x 4x 4x
Pioneer DVR-108 16x 16x 4x 4x
While all these drives are indeed 16x models, only two will write to both formats at this speed. The LG GSA-4160B and the Lite-On SOHW-1633s only support 8x DVD-R writing. So if you are one who only prefers this format, the NEC or Pioneer would be the best choice. All of these drives support writing to DVD re-writable media at 4x.
DVD+R9 Double Layer Writing
Write Speed
LG GSA-4160B 2.4x
Lite-On SOHW-1633s 2.4x
NEC ND-3500A 4x
Pioneer DVR-108 4x
The major disappointment with both the LG and the Lite-On 16x drives is the lack of 4x double layer writing support. Pioneer and NEC seem to be the only manufacturers to jump in and release second generation double layer drives supporting much faster 4x writing. In fact, the jump from 2.4x to 4x is quite substantial as we will show you a bit later in this comparison.
DVD-RAM Support
Supported Read Write
LG GSA-4160B YES 5x 5x
Lite-On SOHW-1633s NO NO NO
NEC ND-3500A NO NO NO
Pioneer DVR-108 YES 2x NO
Now this is where both the LG GSA-4120B and GSA-4160B shine above the rest. In fact, it is what has made these drives the most popular DVD writers on the market. Unlike the rest in the roundup, it is a triple format burner, offering full support for DVD-RAM media. The other drives do not support it, with the exception of the Pioneer DVR-108 which supports reading of DVD-RAM discs at 2x. I personally don't see the point in offering only read capabilities, but it's at least one extra feature added to distinguish it from the rest. Fast 5x support of the LG GSA-4160 will actually be tested a bit later in this article.
CDR Writing
CDR CDRW
LG GSA-4160B 40x 24x
Lite-On SOHW-1633s 48x 24x
NEC ND-3500A 48x 24x
Pioneer DVR-108 32x 24x
The fastest CDR writers of the bunch are the Lite-On SOHW-1633s and the NEC ND-3500A. With their support for 48x writing, they make a great all-in-one drive for many users. The only drive lacking in this lineup is the Pioneer DVR-108. Why they opted for only 32x writing is still quite puzzling and is actually why I have found that many are choosing the NEC over the Pioneer. The LG GSA-4160B should not be left out of consideration though. We will show you later that the difference in write times between 40x and 48x is not much to brag about.
Bitsetting Support
One feature I've found that is most important for many users is bitsetting support. Let's compare these drives and see what they offer.
DVD+R/RW Support DVD+R DL Support
LG GSA-4160B NO NO
Lite-On SOHW-1633s YES NO
NEC ND-3500A NO YES
Pioneer DVR-108 NO YES
The LG GSA-4160B does not offer bitsetting support out of the box. However, it is very likely that you will be able to obtain support through an excellent third-party tool called DVDInfo Pro. Right now, they only support the GSA-4120B, but I'm confident with the author that support for this drive will be likely. LG firmware is very hard to hack, however some select few have been able to do so. Using Lite-On's booktype utility, you can change the booktype of DVD+R/RW media, however, the firmware does not automatically change booktype of DVD+R DL discs to DVD-ROM like the NEC and Pioneer models do.
Additional Features
As far as other features go, all these drives have a 2MB buffer but offer some sort of buffer under-run protection, which all work exceptionally well. This is especially useful if you will be burning discs at 16x, which I personally don't recommend just yet. As our individual tests of these drives revealed, burning at this speed is quite unstable, with the exception of the Lite-On SOHW-1633s.
-[ How to rip Dynamic Flash Template ]-
How to Rip TM Dynamic Flash Templates
by: Baisan
What you need:
Sample dynamic flash template from TM website
Sothink SWF Decompiler
Macromedia Flash
Yourself
1. browse or search your favorite dynamic flash template in TM website. If you got one... click the "view" link and new window will open with dynamic flash.. loading...
2. If the movie fully loaded, click View -> Source in your browser to bring the source code of the current page and in the source code, search for "IFRAME" and you will see the iframe page. In this example were going to try the 7045 dynamic template. get the URL(ex.
http://images.templatemonster.com/screenshots/7000/7045.html) then paste it to your browser... easy eh? wait! dont be to excited... erase the .html and change it to swf then press enter then you'll see the flash movie again icon_smile.gif.
3. copy the URL and download that SWF file.. use your favorite download manager.. mine I used flashget icon_smile.gif NOTE: dont close the browser we may need that later on.
4. open your Sothink SWF decompiler... click "Quick Open" then browse where you download your SWF/movie file. Click Export FLA to export your SWF to FLA, in short, save it as FLA icon_smile.gif
5. Open your Macromedia FLash and open the saved FLA file. press Control+Enter or publish the file... then wallah! the output window will come up with "Error opening URL blah blah blah..." dont panic, that error will help you where to get the remaining files.
by: Baisan
What you need:
Sample dynamic flash template from TM website
Sothink SWF Decompiler
Macromedia Flash
Yourself
1. browse or search your favorite dynamic flash template in TM website. If you got one... click the "view" link and new window will open with dynamic flash.. loading...
2. If the movie fully loaded, click View -> Source in your browser to bring the source code of the current page and in the source code, search for "IFRAME" and you will see the iframe page. In this example were going to try the 7045 dynamic template. get the URL(ex.
http://images.templatemonster.com/screenshots/7000/7045.html) then paste it to your browser... easy eh? wait! dont be to excited... erase the .html and change it to swf then press enter then you'll see the flash movie again icon_smile.gif.
3. copy the URL and download that SWF file.. use your favorite download manager.. mine I used flashget icon_smile.gif NOTE: dont close the browser we may need that later on.
4. open your Sothink SWF decompiler... click "Quick Open" then browse where you download your SWF/movie file. Click Export FLA to export your SWF to FLA, in short, save it as FLA icon_smile.gif
5. Open your Macromedia FLash and open the saved FLA file. press Control+Enter or publish the file... then wallah! the output window will come up with "Error opening URL blah blah blah..." dont panic, that error will help you where to get the remaining files.
#DataVault, Irc Warez (Ty 4 Moving X)
Not Sure If Many People Use This Site, however heres A Few Steps To getting In.. And Getting The Latest Games..
Right 1st You Need mIRC (Download Below)
http://www.ircadmin.net/mirc/mirc614.exe
Once Downloaded And Installed.. Next Step Is To Get Yourself Connected To The Datavault Network..
Step 1 :- Open irc, Goto Tools,Options. Then Servers, Click Add
Under Description Type : DataVault
Under IRC Server Type : irc.addictz.net
Under Port(S) Type : 6667-6669
Now Click Ok..
Step 2 : Connecting To Irc.Addictz.Net
Goto Tools/Options/Servers
Select Datavault From Drop Down Menu
Tick "New Server Window"
Then Click Connect
A New Window Will Open Telling You That You Are Connecting To Irc.Addictz.net
Step 3 : Now You Have To Register YourSelf.
In The Window Type /msg nickserv register "your Password" "Your Valid Email"
Next Type /msg NickServ IDENTIFY "The Password You Just Entered"
It Should Now Say Your Registered!
Now Type /J #Datavault
Step 4 : The Bots In DataVault Spam What They Host Every 1 Hour, Becareful Not To Spam These Or Else You Will Be Banned..
Every Hour You Will See What Looks Like Below :-
** To request a file type: "/msg slut02 BITCH send #x
#1 392x [0.7G] Torque.DVDRiP.XviD-BRUTUS
#2 1509x [0.7G] The.Butterfly.Effect.DVDRip.XviD-DMT
It's Simple To Request A Download Now..
There Are Different Bots With Different Names, Ie Slut02 Is Just One Bot, There Are More Called Dv44, Dv33 Slut03 Etc.. However The Trigger Principle Is The Sa,e
Now If For Example You Wanted To Download "The ButterFly Effect", In The Main Chat Window You Would Type or Copy /msg slut02 BITCH send #2
Let Me Explaine.. /msg Is The Trigger, Slut02 Is The Bot BITCH and Send Are Both Triggers #2 Is The File Number You Want. Each Bot Can Host Numerouse Files, Ie #1 Being Another Film, #3 Also Being Another Film.
Once You Have Done That And Press Return, Just Sit Back And Wait.. Either The Download Will Start Straight Away, Or You Will Be Qued (*Cough Dodgy Spelling*)
Right Now To The Benifits Of #Datavault..
1: The Latest Release Of Most Films And Games.
2: 99.99% The Time You Get To Download At You Max BandWidth No Matter Your Connection (Either 56k (Omg Dont Download A 3 Gig File On That!!), Or A T1/OC3 Connection))
I Hope Someone Finds This HelpFull, If It's In The Wrong Place/ Or Inappropriate Then Plz Delete And Serve Me The Warning I Deserve....
Edit : It's A Good Idea To Have Auto Accept Dcc On, Incase Your Away When You Come InLine For Your Download, Generally Even If Your 20th In Que And It Says 3 Hours Wait, Your Prolly Looking At Around 30 Mins Waiting Slot..
Any Problems Please Let Me Know.. NN Peeps..
Right 1st You Need mIRC (Download Below)
http://www.ircadmin.net/mirc/mirc614.exe
Once Downloaded And Installed.. Next Step Is To Get Yourself Connected To The Datavault Network..
Step 1 :- Open irc, Goto Tools,Options. Then Servers, Click Add
Under Description Type : DataVault
Under IRC Server Type : irc.addictz.net
Under Port(S) Type : 6667-6669
Now Click Ok..
Step 2 : Connecting To Irc.Addictz.Net
Goto Tools/Options/Servers
Select Datavault From Drop Down Menu
Tick "New Server Window"
Then Click Connect
A New Window Will Open Telling You That You Are Connecting To Irc.Addictz.net
Step 3 : Now You Have To Register YourSelf.
In The Window Type /msg nickserv register "your Password" "Your Valid Email"
Next Type /msg NickServ IDENTIFY "The Password You Just Entered"
It Should Now Say Your Registered!
Now Type /J #Datavault
Step 4 : The Bots In DataVault Spam What They Host Every 1 Hour, Becareful Not To Spam These Or Else You Will Be Banned..
Every Hour You Will See What Looks Like Below :-
** To request a file type: "/msg slut02 BITCH send #x
#1 392x [0.7G] Torque.DVDRiP.XviD-BRUTUS
#2 1509x [0.7G] The.Butterfly.Effect.DVDRip.XviD-DMT
It's Simple To Request A Download Now..
There Are Different Bots With Different Names, Ie Slut02 Is Just One Bot, There Are More Called Dv44, Dv33 Slut03 Etc.. However The Trigger Principle Is The Sa,e
Now If For Example You Wanted To Download "The ButterFly Effect", In The Main Chat Window You Would Type or Copy /msg slut02 BITCH send #2
Let Me Explaine.. /msg Is The Trigger, Slut02 Is The Bot BITCH and Send Are Both Triggers #2 Is The File Number You Want. Each Bot Can Host Numerouse Files, Ie #1 Being Another Film, #3 Also Being Another Film.
Once You Have Done That And Press Return, Just Sit Back And Wait.. Either The Download Will Start Straight Away, Or You Will Be Qued (*Cough Dodgy Spelling*)
Right Now To The Benifits Of #Datavault..
1: The Latest Release Of Most Films And Games.
2: 99.99% The Time You Get To Download At You Max BandWidth No Matter Your Connection (Either 56k (Omg Dont Download A 3 Gig File On That!!), Or A T1/OC3 Connection))
I Hope Someone Finds This HelpFull, If It's In The Wrong Place/ Or Inappropriate Then Plz Delete And Serve Me The Warning I Deserve....
Edit : It's A Good Idea To Have Auto Accept Dcc On, Incase Your Away When You Come InLine For Your Download, Generally Even If Your 20th In Que And It Says 3 Hours Wait, Your Prolly Looking At Around 30 Mins Waiting Slot..
Any Problems Please Let Me Know.. NN Peeps..
Hide Files or Folders Using Command Prompt
Trick to hide files and folders using Command Prompt
The most important thing is that, once hidden with this method, the files/folders cannot be viewedby any search options even if you click "Show All Hidden Files and Folders".
Hiding the most wanted files and folders is very important nowadays and it's really a tedious job too. In order to make this tedious job an easy one, i'm goingto deliver you a the trick now.
For Example: You have a folder named " collegephotos " and this folder is stored in (Disk Drive E). You think that it should not be seen by strangers who use your PC.
For that you need to follow the following instructions
1. Press windowkey+R : Run command dialog box appears.
2. Now type " cmd " and hit enter. A command prompt window displays.
3. Now type " attrib +s +h E:\collegephotos " and hit enter.
4. The folder "collegephotos" will be hidden (Note: It cannot be viewed by any search options)
(To view this folder again, use the same command but replace '+' with '-' on both flags 's' and 'h'
The most important thing is that, once hidden with this method, the files/folders cannot be viewedby any search options even if you click "Show All Hidden Files and Folders".
Hiding the most wanted files and folders is very important nowadays and it's really a tedious job too. In order to make this tedious job an easy one, i'm goingto deliver you a the trick now.
For Example: You have a folder named " collegephotos " and this folder is stored in (Disk Drive E). You think that it should not be seen by strangers who use your PC.
For that you need to follow the following instructions
1. Press windowkey+R : Run command dialog box appears.
2. Now type " cmd " and hit enter. A command prompt window displays.
3. Now type " attrib +s +h E:\collegephotos " and hit enter.
4. The folder "collegephotos" will be hidden (Note: It cannot be viewed by any search options)
(To view this folder again, use the same command but replace '+' with '-' on both flags 's' and 'h'
WANT TO KNOW WHO USED YOUR PC IN YOURABSENCE
Want to know Who Used Your Pc In Your Absence & what Did He Do?
just follow these simple steps
start > run >eventvwr.msc
Events are stored in three log files: Application, Security, and System.
These logs can be reviewed and archived.
For our purposes we want the System log. Click on "System" in the left-hand column for a list of events.
Look for a date and time when you weren't home and your computer should have been off.
double click on the eg: info n it will show u the detail.
You can also use this log to see how long someone was on the computer.
Just look at the time the computer was turned on and off for that day
just follow these simple steps
start > run >eventvwr.msc
Events are stored in three log files: Application, Security, and System.
These logs can be reviewed and archived.
For our purposes we want the System log. Click on "System" in the left-hand column for a list of events.
Look for a date and time when you weren't home and your computer should have been off.
double click on the eg: info n it will show u the detail.
You can also use this log to see how long someone was on the computer.
Just look at the time the computer was turned on and off for that day
MATRIX LIKE EFFECT
Trick For Matrix Effect
just follow the steps
1. Open Notepad.
2.Copy the below mentioned text in your notepad file:
@echo off
color 02
:start
echo %random% %random%%random% %random%%random% %random%%random% %random%%random% %random%
goto start
3. Save the file with .bat extension like Mat.bat
it will look like image shown below
AND THEN JUST DOUBLE CLICK ON THIS Mat.bat file and see the magic
just follow the steps
1. Open Notepad.
2.Copy the below mentioned text in your notepad file:
@echo off
color 02
:start
echo %random% %random%%random% %random%%random% %random%%random% %random%%random% %random%
goto start
3. Save the file with .bat extension like Mat.bat
it will look like image shown below
AND THEN JUST DOUBLE CLICK ON THIS Mat.bat file and see the magic
HOW TO USE RUPEE FONT
Download Rupee font in : http://blog.foradian.com/
want to use rupee symbol on to your computer. The symbol may take a while to appear on the keyboard, Mangalore-based Foradian Technologies Pvt Ltd has created a font called Rupee_Foradian. It can be downloaded from the company’sblog— http://blog.foradian.com and used for free.
Foradian Technologies created a vector image of the new rupee sign and mapped the 'grave accent' symbol — the key just above the tab button on the keyboard — with it. This keystroke was chosen because most users and programmers don't use it. Version 2.0 of the font was released within 24 hours of the announcement of the rupee symbol. Font Download here
STEPS TO USE IT
>
Install Rupee Font by Copying theRupee.ttf into C:WindowsFont Folder.
>Open MS Word or ANY TEXT EDITOR .
>Select Rupee Font From Font Listof MS Word. Type ~ .
thats it
want to use rupee symbol on to your computer. The symbol may take a while to appear on the keyboard, Mangalore-based Foradian Technologies Pvt Ltd has created a font called Rupee_Foradian. It can be downloaded from the company’sblog— http://blog.foradian.com and used for free.
Foradian Technologies created a vector image of the new rupee sign and mapped the 'grave accent' symbol — the key just above the tab button on the keyboard — with it. This keystroke was chosen because most users and programmers don't use it. Version 2.0 of the font was released within 24 hours of the announcement of the rupee symbol. Font Download here
STEPS TO USE IT
>
Install Rupee Font by Copying theRupee.ttf into C:WindowsFont Folder.
>Open MS Word or ANY TEXT EDITOR .
>Select Rupee Font From Font Listof MS Word. Type ~ .
thats it
watch live tv free
Watch Live TV on Your PC For Free
Now you can watch free Tv on your pc by just using a VLC player.
Step 1 : First of all you need to have VLC player, if you don’t have vlc player kindly download and install it
Step 2 : Now open Vlc Player, andselect streaming option from the media menu present in the menubar.
Step 3 : Select network option and enter the url of the streaming channel. For example if you want to view B4u Music you need to add url
rtsp://217.146.95.166:554/playlist/ch12zqcif.3gp
in the url field and then select play option from the stream dropdown menu.
Step 4 : After you click play in the above step, the channel will start streaming and you can watch your favorite channels.
Here is the List of many other channels which you will love to watch
Channel Name
Link
NDTV rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_33.sdp
NDTV Profit rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_31.sdp
Times Now rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_2.sdp
Aaj Tak rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_4.sdp
CNBC Aawaz rtsp://ss1c6.idc.mundu.tv:554/prf1/cid_34.sdp
CNBC TV 18 rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_35.sdp
Headlines Today rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_7.sdp
NDTV 24×7 rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_29.sdp
NK News rtsp://94.75.250.53:554/rtplive/rknews.sdp
RAJ News rtsp://94.75.250.220:1935/live/rajnews2.sdp
ETV rtsp://94.75.250.53/rtplive/etv2low.sdp
Studio N rtsp://94.75.250.220:1935/live/studion2
SVBC rtsp://94.75.250.220/rtplive/svbclow
Zoo Vision rtsp://stream.zoovision.com/live.sdp
B4u Music rtsp://217.146.95.166:554/playlist/ch12zqcif.3gp
iMusic rtsp://217.146.95.166:554/playlist/ch26yqcif.3gp
Zee Tamil rtsp://121.244.145.226:554/prf1/cid_54.sdp
Zee Kannad rtsp://121.244.145.226:554/prf1/cid_55.sdp
Zee Bangla rtsp://121.244.145.226:554/prf1/cid_52.sdp
Music Box rtsp://stream.the.sk/live/musicbox/musicbox-3m.3gp
Bella Tv rtsp://217.146.95.166:554/playlist/ch29yqcif.3gp
Fashion Tv rtsp://217.146.95.166:554/playlist/ch27yqcif.3gp
Adventure rtsp://video3.multicasttech.com/AFTVAdventure3GPP296.sdp
Horror rtsp://video2.multicasttech.com/AFTVHorror3GPP296.sdp
Comedy rtsp://video3.multicasttech.com/AFTVComedy3GPP96.sdp
Classic rtsp://video3.multicasttech.com/AFTVClassics3GPP296.sdp
Crime rtsp://video2.multicasttech.com/AFTVCrime3GPP296.sdp
Mystery rtsp://video2.multicasttech.com/AFTVMystery3GPP296.sdp
Clubbing Tv rtsp://217.146.95.166:554/playlist/ch21yqcif.3gp
Now you can watch free Tv on your pc by just using a VLC player.
Step 1 : First of all you need to have VLC player, if you don’t have vlc player kindly download and install it
Step 2 : Now open Vlc Player, andselect streaming option from the media menu present in the menubar.
Step 3 : Select network option and enter the url of the streaming channel. For example if you want to view B4u Music you need to add url
rtsp://217.146.95.166:554/playlist/ch12zqcif.3gp
in the url field and then select play option from the stream dropdown menu.
Step 4 : After you click play in the above step, the channel will start streaming and you can watch your favorite channels.
Here is the List of many other channels which you will love to watch
Channel Name
Link
NDTV rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_33.sdp
NDTV Profit rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_31.sdp
Times Now rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_2.sdp
Aaj Tak rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_4.sdp
CNBC Aawaz rtsp://ss1c6.idc.mundu.tv:554/prf1/cid_34.sdp
CNBC TV 18 rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_35.sdp
Headlines Today rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_7.sdp
NDTV 24×7 rtsp://ss1c6.idc.mundu.tv:554/prf0/cid_29.sdp
NK News rtsp://94.75.250.53:554/rtplive/rknews.sdp
RAJ News rtsp://94.75.250.220:1935/live/rajnews2.sdp
ETV rtsp://94.75.250.53/rtplive/etv2low.sdp
Studio N rtsp://94.75.250.220:1935/live/studion2
SVBC rtsp://94.75.250.220/rtplive/svbclow
Zoo Vision rtsp://stream.zoovision.com/live.sdp
B4u Music rtsp://217.146.95.166:554/playlist/ch12zqcif.3gp
iMusic rtsp://217.146.95.166:554/playlist/ch26yqcif.3gp
Zee Tamil rtsp://121.244.145.226:554/prf1/cid_54.sdp
Zee Kannad rtsp://121.244.145.226:554/prf1/cid_55.sdp
Zee Bangla rtsp://121.244.145.226:554/prf1/cid_52.sdp
Music Box rtsp://stream.the.sk/live/musicbox/musicbox-3m.3gp
Bella Tv rtsp://217.146.95.166:554/playlist/ch29yqcif.3gp
Fashion Tv rtsp://217.146.95.166:554/playlist/ch27yqcif.3gp
Adventure rtsp://video3.multicasttech.com/AFTVAdventure3GPP296.sdp
Horror rtsp://video2.multicasttech.com/AFTVHorror3GPP296.sdp
Comedy rtsp://video3.multicasttech.com/AFTVComedy3GPP96.sdp
Classic rtsp://video3.multicasttech.com/AFTVClassics3GPP296.sdp
Crime rtsp://video2.multicasttech.com/AFTVCrime3GPP296.sdp
Mystery rtsp://video2.multicasttech.com/AFTVMystery3GPP296.sdp
Clubbing Tv rtsp://217.146.95.166:554/playlist/ch21yqcif.3gp
MAKE YOUR PC TO READ PDF's
This is an Interesting Trick in Adobe Reader.
it works in Adobe Reader 7.0 through the latest
1. First of all Install Adobe Reader, if you haven’t already.
after installing follow the below step
2. go to View>Read out Loud> Activate Read Out Loud.
thats it...........
it works in Adobe Reader 7.0 through the latest
1. First of all Install Adobe Reader, if you haven’t already.
after installing follow the below step
2. go to View>Read out Loud> Activate Read Out Loud.
thats it...........
LOCK YOUR PC WHEN YOU LEAVE THE ROOM
Have you wondered is there any app that can just lock off your computer without having to touch the keyboard?
Well, there is.
here is the application for you all
BtProx ( http://btprox.sourceforge.net/ ) is a free application that monitors the proximity of your computer to your cellphone or other bluetooth device . It will lock off your computer automatically, protecting its contents from prying eyes when the phone goes out of range which means you walk away from your computer. Obviously, you would take your cellphone you when you leave, wouldn't you? It will also unlock automatically when you return back, with your cellphone or other bluetooth device of course.
this is not all also with BtProx , you can set up an arrangement that automatically locks your computer and turns on the PC security system when you step away from the machine.
feel free to leave your comments...........
Well, there is.
here is the application for you all
BtProx ( http://btprox.sourceforge.net/ ) is a free application that monitors the proximity of your computer to your cellphone or other bluetooth device . It will lock off your computer automatically, protecting its contents from prying eyes when the phone goes out of range which means you walk away from your computer. Obviously, you would take your cellphone you when you leave, wouldn't you? It will also unlock automatically when you return back, with your cellphone or other bluetooth device of course.
this is not all also with BtProx , you can set up an arrangement that automatically locks your computer and turns on the PC security system when you step away from the machine.
feel free to leave your comments...........
Block access to drives in Windows 7 ultimate/premium
IF you want no one to open a drive without your permission.
it is possible in Windows 7 ultimate/premium
To block access to drive go to Computer and right click on the drive and select properties. In theproperties window click on ‘Security’ tab. Select the user account you want to restrict and click on edit.
Change the permissions according to your need for user groups or a particular user and click Apply and then OK. It will notwork for users with admin account as even they have the same rights as you so they can revert all permissions. You will need an admin account to perform this task.
NOTE:This trick is for Windows 7 ultimate and premium edition users only
it is possible in Windows 7 ultimate/premium
To block access to drive go to Computer and right click on the drive and select properties. In theproperties window click on ‘Security’ tab. Select the user account you want to restrict and click on edit.
Change the permissions according to your need for user groups or a particular user and click Apply and then OK. It will notwork for users with admin account as even they have the same rights as you so they can revert all permissions. You will need an admin account to perform this task.
NOTE:This trick is for Windows 7 ultimate and premium edition users only
Iphone serial number
Serial number provides some interesting information about your iPhone, like the week it was manufactured, the factory id and much more.
The first step is to locate the Serial Number. The easiest way tofind it is to open your Settings app and navigate to General -> About -> Serial Number. You should also see the Serial Number in the Summary tab in iTunes when your iPhone is connected to the computer.
Serial numbers come in the form AABCCDDDEEF
where
> AA = Factory and machine ID
> B = Year manufactured (simplified to final digit, 2010 is 0, 2011 is 1, etc)
> CC = Week of production
> DDD = Unique identifier
> EEF = iPhone model, color of device and size of storage
VR0 (iPhone 2G Silver 4GB) WH8 (iPhone 2G Silver 8GB) 0KH (iPhone 2G Silver 16GB) Y7H (iPhone 3G Black 8GB) Y7K (iPhone 3G Black 16GB) 3NP (iPhone 3GS Black 16GB) 3NR (iPhone 3GS Black 32GB) 3NQ (iPhone 3Gs White 16GB) 3NS (iPhone 3Gs White 32GB) A4S (iPhone 4 Black 16GB) A4T (iPhone 4 Black 32GB)
E00 (iPhone 4 White 32GB) - Courtesy IyonUK
For example, the serial 79028XXXA4S is from factory 79 (presumably Foxconn), was manufactured in 2010 in the 28 week, and is a black 16GB iPhone4.
Unfortunately, Apple has changed the serial number generation with the CDMA iPhone4, so this is not applicable for theCDMA iPhone 4 and iPhone 4S.
The first step is to locate the Serial Number. The easiest way tofind it is to open your Settings app and navigate to General -> About -> Serial Number. You should also see the Serial Number in the Summary tab in iTunes when your iPhone is connected to the computer.
Serial numbers come in the form AABCCDDDEEF
where
> AA = Factory and machine ID
> B = Year manufactured (simplified to final digit, 2010 is 0, 2011 is 1, etc)
> CC = Week of production
> DDD = Unique identifier
> EEF = iPhone model, color of device and size of storage
VR0 (iPhone 2G Silver 4GB) WH8 (iPhone 2G Silver 8GB) 0KH (iPhone 2G Silver 16GB) Y7H (iPhone 3G Black 8GB) Y7K (iPhone 3G Black 16GB) 3NP (iPhone 3GS Black 16GB) 3NR (iPhone 3GS Black 32GB) 3NQ (iPhone 3Gs White 16GB) 3NS (iPhone 3Gs White 32GB) A4S (iPhone 4 Black 16GB) A4T (iPhone 4 Black 32GB)
E00 (iPhone 4 White 32GB) - Courtesy IyonUK
For example, the serial 79028XXXA4S is from factory 79 (presumably Foxconn), was manufactured in 2010 in the 28 week, and is a black 16GB iPhone4.
Unfortunately, Apple has changed the serial number generation with the CDMA iPhone4, so this is not applicable for theCDMA iPhone 4 and iPhone 4S.
HIDE DATA IN MOBILE WITHOUT ANY SOFTWARE
Have you ever wanted to hide folders in your phone? If yes,there here is very interesting solution for you to hide folders inyour phone and youdont even need any software for that.
This trick can be used for any JAVA phone from Nokia,Samsung,Motorola,LG or any other company.
JUST FOLLOW SIMPLE STEPS
1. Create any new folder or you can use any existing folder thatis to be hidden.
2. Rename the folder to any namebut with the extension of .jad like if I want to hide my imagesfolder then I will name it as IMG.jad
3. Now create a new folder with the same name in the same directory but with the extension of .jar So, I would create the folder with the name IMG .jar
4. And thats it!! My orignal imagesfolder which has been renamed with .jad gets hidden and only folder with .jar extension is visible which is empty.So,my data is protected/hidden from unwanted eyes.
To unhide the orignal folder you have to remove the .jar extensionfrom the new folder and your orignal folder with all the files and with .jad will become visible
This trick can be used for any JAVA phone from Nokia,Samsung,Motorola,LG or any other company.
JUST FOLLOW SIMPLE STEPS
1. Create any new folder or you can use any existing folder thatis to be hidden.
2. Rename the folder to any namebut with the extension of .jad like if I want to hide my imagesfolder then I will name it as IMG.jad
3. Now create a new folder with the same name in the same directory but with the extension of .jar So, I would create the folder with the name IMG .jar
4. And thats it!! My orignal imagesfolder which has been renamed with .jad gets hidden and only folder with .jar extension is visible which is empty.So,my data is protected/hidden from unwanted eyes.
To unhide the orignal folder you have to remove the .jar extensionfrom the new folder and your orignal folder with all the files and with .jad will become visible
debug: Learn how to crack windows, programs ect manually
Debug is a program that comes with modern versions of DOS (I do not know when I started shipping out with DOS). Anyway, all Windows users should have it already.
It's a great tool for debuging programs, unassembling and cracking, and reading "hidden" memory areas like the boot sector, and much more.
The following was copied from an assembly tutorial who's author we cannot credit, because we have no idea who he is.
Get into DOS and type "debug", you will get a prompt like this:
-
now type "?", you should get the following response:
assemble A [address]
compare C range address
dump D [range]
enter E address [list]
fill F range list
go G [=address] [addresses]
hex H value1 value2
input I port
load L [address] [drive] [firstsector] [number]
move M range address
name N [pathname] [arglist]
output O port byte
proceed P [=address] [number]
quit Q
register R [register]
search S range list
trace T [=address] [value]
unassemble U [range]
write W [address] [drive] [firstsector] [number]
allocate expanded memory XA [#pages]
deallocate expanded memory XD [handle]
map expanded memory pages XM [Lpage] [Ppage] [handle]
display expanded memory status XS
Lets go through each of these commands:
Assemble:
-a
107A:0100
At this point you can start assembling some programs, just like using a assembler. However the debug assembler is very limited as you will probably notice. Lets try to enter a simple program:
-a
107A:0100 MOV AH,02
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-g
A
Program terminated normally
That's the same program we did at the end of the previous chapter. Notice how you run the program you just entered with "g", and also notice how the set-up part is not there? That's because debug is just too limited to support that.
Another thing you can do with assemble is specify the address at which you want to start, by default this is 0100 since that's where all .COM files start.
Compare:
Compare takes 2 block of memory and displays them side by side, byte for byte. Lets do an example. Quite out of debug if you haven't already using "q". Now type "debug c:\command.com"
-c 0100 l 8 0200
10A3:0100 7A 06 10A3:0200
This command compared offset 0100 with 0200 for a length of 8 bytes. Debug responded with the location that was DIFFERENT. If 2 locations were the same, debug would just omit them, if all are the same debug would simply return to the prompt without any response.
Dump:
Dump will dump a specified memory segment. To test it, code that assembly program again:
C:\>debug
-a
107A:0100 MOV AH,02
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-d 0100 l 8
107A:0100 B4 02 B2 41 CD 21 CD 20
...A.!.
The "B4 02 B2 41 CD 21 CD 20" is the program you just made in machine language.
B4 02 = MOV AH,02
B2 41 = MOV DL,41
CD 21 = INT 21
CD 20 = INT 20
The "...A.!." part is your program in ASCII. The "." represent non-printable characters. Notice the A in there.
Enter:
This is one of the hard commands. With it you can enter/change certain memory areas. Lets change our program so that it prints a B instead of an A.
-e 0103 <-- edit program at segment 0103
107A:0103 41.42 <-- change 41 to 42
-g
B
Program terminated normally
-
Wasn't that amazing?
Fill:
This command is fairly useless, but who knows....
It fills the specified amount of memory with the specified data. Lets for example clear out all memory from segment 0100 to 0108, which happens to be our program.
-f 0100 l 8 0 <-- file offset 0100 for a length of 8 bytes with 0
-d 0100 l 8 <-- verify that it worked
107A:0100 00 00 00 00 00 00 00 00 .......
Yep, it worked.
Go:
So far we used go (g) to start the program we just created. But Go can be used for much more. For example, lets say we want to execute a program at 107B:0100:
-r CS <-- set the CS register to point to 107B
CS 107A
:107B
-g =100
You can also set breakpoints.
-a <-- enter our original program so we have something
107A:0100 MOV AH,02 to work with
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-g 102 <-- set up a break point at 107A:0102
At this point the program will stop, display all registers and the current instruction.
Hex:
This can be very useful. It subtracts and adds two hexadecimal values:
-h 2 1
0003 0001 <-- 2h + 1+ = 3h and 2h - 1h = 1h
This is very useful for calculating a programs length, as you will see later.
Input:
This is one of the more advanced commands, and I decided not to talk about it too much for now. It will read a byte of data from any of your computers I/O ports (keyboard, mouse, printer, etc).
-i 3FD
60
-
Your data may be different.
In case you want to know, 3FD is Com port 1, also known as First Asynchronous Adapter.
Load:
This command has 2 formats. It can be used to load the filename specified with the name command (n), or it can load a specific sector.
-n c:\command.com
-l
This will load command.com into debug. When a valid program is loaded all registers will be set up and ready to execute the program.
The other method is a bit more complicated, but potential also more usefull. The syntax is
L <address> <drive letter/> <sector> <amount to load>
-l 100 2 10 20
This will load starting at offset 0100 from drive C (0 = A, 1 = B, 2 = C, etc), sector 10h for 20h sectors. This can be useful for recovering files you deleted.
Move:
Move takes a byte from the starting address and moves it to the destination address. This is very good to temporary move data into a free area, than manipulate it without having to worry about affecting the original program. It is especially useful if used in conjunction with the r command to which I will get later. Lets try an example:
-a <-- enter our original program so we have something
107A:0100 MOV AH,02 to work with
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-m 107A:0100 L 8 107B:0100 <-- more 8 bytes starting from 107A:0100 into 107B:0100
-e 107B:0103 <-- edit 107B:0103
107B:0103 41.42 <-- and change it 42 (
-d 107A:0100 L 8 <-- make sure it worked
107A:0100 B4 02 B2 41 CD 21 CD 20 ...A.!.
-d 107B:0100 L 8
107A:0100 B4 02 B2 42 CD 21 CD 20 ...B.!.
-m 107B:0100 L 8 107A:0100 <-- restore the original program since we like the changes.
Name:
This will set debug up with a filename to use for I/O commands. You have to include the file extension, and you may use addition commands:
-n c:\command.com
Output:
Exactly what you think it is. Output sends stuff to an I/O port. If you have an external modem with those cool lights on it, you can test this out. Find out what port your modem is on and use the corresponding hex number below:
Com 1 = 3F8 - 3FF (3DF for mine)
Com 2 = 2F8 - 2FF
Com 3 = ??? - ??? (if someone knows, please let me know)
Now turn on the DTA (Data Terminal Ready) bit by sending 01h to it:
-o XXX 1 <-- XXX is the com port in hex
As soon as you hit enter, take a look at your modem, you should see a light light up. You can have even more fun with the output command. Say someone put one of those BIOS passwords on "your" computer. Usually you'd have to take out the battery to get rid of it, but not anymore:
MI/AWARD BIOS
-o 70 17
-o 71 17
QPHOENIX BIOS
-o 70 FF
-o 71 17
QGENERIC
-o 70 2E
-o 71 FF
These commands will clear the BIOS memory, thus disabling the password.
Proceed:
Proceeds in the execution of a program, usually used together withy Trace, which I will cover later. Like the go command, you can specify an address from which to start
using =address
-p 2
Debug will respond with the registers and the current command to be executed.
Quite:
This has got to be the most advanced feature of debug, it exits debug!
-q
Register:
This command can be used to display the current value of all registers, or to manually set them. This is very useful for writing files as you will see later on.
-r AX
AX: 011B
:5
-
Search:
Another very useful command. It is used to find the occurrence of a specific byte, or series of bytes in a segment. The data to search for can by either characters, or a hex value. Hex values are entered with a space or comma in between them, and characters are enclosed with quotes (single or double). You can also search for hex and characters with the same string:
-n c:\command.com <-- load command.com so we have some data to search in
-l
-s 0 l 0 "MS-DOS" <-- search entire memory block for "MS-DOS"
10A3:39E9 <-- found the string in 10A3:39E9
NOTE: the search is case sensitive!
Trace:
This is a truly great feature of debug. It will trace through a program one instruction at a time, displaying the instruction and registers after each. Like the go command you can specify where to start executing from, and for how long.
-a <-- yes, this thing again
107A:0100 MOV AH,02
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-t =0100 8
If you leave out the amount of instructions that you want to trace, you can use the proceed (p) to continue the execution as long as you want.
Unassemble:
Unassembles a block of code. Great for debugging (and cracking)
-u 100 L 8 <-- unassembles 8 bytes starting at offset 100
107A:0100 MOV AH,02 <-- debut's response
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
Write:
This command works very similar to Load. It also has 2 ways it can operate: using name, and by specifying an exact location. Refer to back to Load for more information.
NOTE: The register CX must be set the file size in order to write!
NOTE: Write will not write .EXE or .HEX files.[SIZE=7][SIZE=14]
Debug is a program that comes with modern versions of DOS (I do not know when I started shipping out with DOS). Anyway, all Windows users should have it already.
It's a great tool for debuging programs, unassembling and cracking, and reading "hidden" memory areas like the boot sector, and much more.
The following was copied from an assembly tutorial who's author we cannot credit, because we have no idea who he is.
Get into DOS and type "debug", you will get a prompt like this:
-
now type "?", you should get the following response:
assemble A [address]
compare C range address
dump D [range]
enter E address [list]
fill F range list
go G [=address] [addresses]
hex H value1 value2
input I port
load L [address] [drive] [firstsector] [number]
move M range address
name N [pathname] [arglist]
output O port byte
proceed P [=address] [number]
quit Q
register R [register]
search S range list
trace T [=address] [value]
unassemble U [range]
write W [address] [drive] [firstsector] [number]
allocate expanded memory XA [#pages]
deallocate expanded memory XD [handle]
map expanded memory pages XM [Lpage] [Ppage] [handle]
display expanded memory status XS
Lets go through each of these commands:
Assemble:
-a
107A:0100
At this point you can start assembling some programs, just like using a assembler. However the debug assembler is very limited as you will probably notice. Lets try to enter a simple program:
-a
107A:0100 MOV AH,02
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-g
A
Program terminated normally
That's the same program we did at the end of the previous chapter. Notice how you run the program you just entered with "g", and also notice how the set-up part is not there? That's because debug is just too limited to support that.
Another thing you can do with assemble is specify the address at which you want to start, by default this is 0100 since that's where all .COM files start.
Compare:
Compare takes 2 block of memory and displays them side by side, byte for byte. Lets do an example. Quite out of debug if you haven't already using "q". Now type "debug c:\command.com"
-c 0100 l 8 0200
10A3:0100 7A 06 10A3:0200
This command compared offset 0100 with 0200 for a length of 8 bytes. Debug responded with the location that was DIFFERENT. If 2 locations were the same, debug would just omit them, if all are the same debug would simply return to the prompt without any response.
Dump:
Dump will dump a specified memory segment. To test it, code that assembly program again:
C:\>debug
-a
107A:0100 MOV AH,02
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-d 0100 l 8
107A:0100 B4 02 B2 41 CD 21 CD 20
...A.!.
The "B4 02 B2 41 CD 21 CD 20" is the program you just made in machine language.
B4 02 = MOV AH,02
B2 41 = MOV DL,41
CD 21 = INT 21
CD 20 = INT 20
The "...A.!." part is your program in ASCII. The "." represent non-printable characters. Notice the A in there.
Enter:
This is one of the hard commands. With it you can enter/change certain memory areas. Lets change our program so that it prints a B instead of an A.
-e 0103 <-- edit program at segment 0103
107A:0103 41.42 <-- change 41 to 42
-g
B
Program terminated normally
-
Wasn't that amazing?
Fill:
This command is fairly useless, but who knows....
It fills the specified amount of memory with the specified data. Lets for example clear out all memory from segment 0100 to 0108, which happens to be our program.
-f 0100 l 8 0 <-- file offset 0100 for a length of 8 bytes with 0
-d 0100 l 8 <-- verify that it worked
107A:0100 00 00 00 00 00 00 00 00 .......
Yep, it worked.
Go:
So far we used go (g) to start the program we just created. But Go can be used for much more. For example, lets say we want to execute a program at 107B:0100:
-r CS <-- set the CS register to point to 107B
CS 107A
:107B
-g =100
You can also set breakpoints.
-a <-- enter our original program so we have something
107A:0100 MOV AH,02 to work with
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-g 102 <-- set up a break point at 107A:0102
At this point the program will stop, display all registers and the current instruction.
Hex:
This can be very useful. It subtracts and adds two hexadecimal values:
-h 2 1
0003 0001 <-- 2h + 1+ = 3h and 2h - 1h = 1h
This is very useful for calculating a programs length, as you will see later.
Input:
This is one of the more advanced commands, and I decided not to talk about it too much for now. It will read a byte of data from any of your computers I/O ports (keyboard, mouse, printer, etc).
-i 3FD
60
-
Your data may be different.
In case you want to know, 3FD is Com port 1, also known as First Asynchronous Adapter.
Load:
This command has 2 formats. It can be used to load the filename specified with the name command (n), or it can load a specific sector.
-n c:\command.com
-l
This will load command.com into debug. When a valid program is loaded all registers will be set up and ready to execute the program.
The other method is a bit more complicated, but potential also more usefull. The syntax is
L <address> <drive letter/> <sector> <amount to load>
-l 100 2 10 20
This will load starting at offset 0100 from drive C (0 = A, 1 = B, 2 = C, etc), sector 10h for 20h sectors. This can be useful for recovering files you deleted.
Move:
Move takes a byte from the starting address and moves it to the destination address. This is very good to temporary move data into a free area, than manipulate it without having to worry about affecting the original program. It is especially useful if used in conjunction with the r command to which I will get later. Lets try an example:
-a <-- enter our original program so we have something
107A:0100 MOV AH,02 to work with
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-m 107A:0100 L 8 107B:0100 <-- more 8 bytes starting from 107A:0100 into 107B:0100
-e 107B:0103 <-- edit 107B:0103
107B:0103 41.42 <-- and change it 42 (
-d 107A:0100 L 8 <-- make sure it worked
107A:0100 B4 02 B2 41 CD 21 CD 20 ...A.!.
-d 107B:0100 L 8
107A:0100 B4 02 B2 42 CD 21 CD 20 ...B.!.
-m 107B:0100 L 8 107A:0100 <-- restore the original program since we like the changes.
Name:
This will set debug up with a filename to use for I/O commands. You have to include the file extension, and you may use addition commands:
-n c:\command.com
Output:
Exactly what you think it is. Output sends stuff to an I/O port. If you have an external modem with those cool lights on it, you can test this out. Find out what port your modem is on and use the corresponding hex number below:
Com 1 = 3F8 - 3FF (3DF for mine)
Com 2 = 2F8 - 2FF
Com 3 = ??? - ??? (if someone knows, please let me know)
Now turn on the DTA (Data Terminal Ready) bit by sending 01h to it:
-o XXX 1 <-- XXX is the com port in hex
As soon as you hit enter, take a look at your modem, you should see a light light up. You can have even more fun with the output command. Say someone put one of those BIOS passwords on "your" computer. Usually you'd have to take out the battery to get rid of it, but not anymore:
MI/AWARD BIOS
-o 70 17
-o 71 17
QPHOENIX BIOS
-o 70 FF
-o 71 17
QGENERIC
-o 70 2E
-o 71 FF
These commands will clear the BIOS memory, thus disabling the password.
Proceed:
Proceeds in the execution of a program, usually used together withy Trace, which I will cover later. Like the go command, you can specify an address from which to start
using =address
-p 2
Debug will respond with the registers and the current command to be executed.
Quite:
This has got to be the most advanced feature of debug, it exits debug!
-q
Register:
This command can be used to display the current value of all registers, or to manually set them. This is very useful for writing files as you will see later on.
-r AX
AX: 011B
:5
-
Search:
Another very useful command. It is used to find the occurrence of a specific byte, or series of bytes in a segment. The data to search for can by either characters, or a hex value. Hex values are entered with a space or comma in between them, and characters are enclosed with quotes (single or double). You can also search for hex and characters with the same string:
-n c:\command.com <-- load command.com so we have some data to search in
-l
-s 0 l 0 "MS-DOS" <-- search entire memory block for "MS-DOS"
10A3:39E9 <-- found the string in 10A3:39E9
NOTE: the search is case sensitive!
Trace:
This is a truly great feature of debug. It will trace through a program one instruction at a time, displaying the instruction and registers after each. Like the go command you can specify where to start executing from, and for how long.
-a <-- yes, this thing again
107A:0100 MOV AH,02
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
-t =0100 8
If you leave out the amount of instructions that you want to trace, you can use the proceed (p) to continue the execution as long as you want.
Unassemble:
Unassembles a block of code. Great for debugging (and cracking)
-u 100 L 8 <-- unassembles 8 bytes starting at offset 100
107A:0100 MOV AH,02 <-- debut's response
107A:0102 MOV DL,41
107A:0104 INT 21
107A:0106 INT 20
Write:
This command works very similar to Load. It also has 2 ways it can operate: using name, and by specifying an exact location. Refer to back to Load for more information.
NOTE: The register CX must be set the file size in order to write!
NOTE: Write will not write .EXE or .HEX files.[SIZE=7][SIZE=14]
Disable Windows Logo Key
i was recently playing games and this nasty windos logo key keep annoying me , cause i often accidently clicked it , and i start to search a solution to solve my problem, and found the following article in microsfot website, and it did work, hope this helps, thanks!
CODE
http://support.microsoft.com/?kbid=181348
or in other articles, u can copy the following messages into ur notepad and save as *.reg, and use it..
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout]
"Scancode Map"=hex:00,00,00,00,00,00,00,00,03,00,00,00,00,00,5b,e0,00,00,5c,e0,\
00,00,00,00
CODE
http://support.microsoft.com/?kbid=181348
or in other articles, u can copy the following messages into ur notepad and save as *.reg, and use it..
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout]
"Scancode Map"=hex:00,00,00,00,00,00,00,00,03,00,00,00,00,00,5b,e0,00,00,5c,e0,\
00,00,00,00
Disable Compression On Xp, NTFS partition, Disk Cleanup
On an NTFS partition, Disk Cleanup can compress old files
to save space. But calculating the savings and performing
the compression often take a long time, and on some systems,
Disk Cleanup hangs during the process. If that happens, or if
you don't care to wait, use this Registry tweak to disable the
compression: Delete the key
HKEY_ LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\ CurrentVersion\Explorer\VolumeCaches\Compress Old Files.
to save space. But calculating the savings and performing
the compression often take a long time, and on some systems,
Disk Cleanup hangs during the process. If that happens, or if
you don't care to wait, use this Registry tweak to disable the
compression: Delete the key
HKEY_ LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\ CurrentVersion\Explorer\VolumeCaches\Compress Old Files.
Change The Storage Location Of 'my Documents', a bit safer for when your PC crashes...
I just found out about this today, and I use Windows XP for some time now, so i guess there are others out there who don't know about this yet.
But normally windows saves the "My Documents" folder on your C-drive. But when you right-click on it and go to properties, you can change the location where you want windows to save your Documents folder.
I have a partition set up with just windows on it, and all my things i want to keep are on different partitions/disks. So now I put My Documents on another partition than where I have windows installed. If windows screws up and you have to format your C-drive again, your documents will be spared at least...
But normally windows saves the "My Documents" folder on your C-drive. But when you right-click on it and go to properties, you can change the location where you want windows to save your Documents folder.
I have a partition set up with just windows on it, and all my things i want to keep are on different partitions/disks. So now I put My Documents on another partition than where I have windows installed. If windows screws up and you have to format your C-drive again, your documents will be spared at least...
CREATE A PERSONAL SCREEN SAVER IN WIN XP
This isnt a tweak, but a great little feature! For a great way to put your digital photos to work, try creating a slide show presentation for use as a screen saver. Here's how:
1. Right-click an empty spot on your desktop and then click Properties.
2. Click the Screen Saver tab.
3. In the Screen saver list, click My Pictures Slideshow.
4. Click Settings to make any adjustments, such as how often the pictures should change, what size they should be, and whether you'll use transition effects between pictures, and then click OK.
Now your screen saver is a random display of the pictures taken from your My Pictures folder.
1. Right-click an empty spot on your desktop and then click Properties.
2. Click the Screen Saver tab.
3. In the Screen saver list, click My Pictures Slideshow.
4. Click Settings to make any adjustments, such as how often the pictures should change, what size they should be, and whether you'll use transition effects between pictures, and then click OK.
Now your screen saver is a random display of the pictures taken from your My Pictures folder.
A SMALL TUT FOR REAL MEDIA
You may find this helpful if you donwload hundreds of short episodes in rm format like me and tired of double-click to open next files.
Very easy. Use notepad to open a new file, type this inside:
file://link to file1
file://link to file2
(type as many as you want)
Close file. Rename it to FileName.rm
Then you`re done!!!!
Ex:
I put my playlist file here: C:\Movies\7VNR
And the movie files are in C:\Movies\7VNR\DragonBall
Then inside my playlist file I`ll have something like this:
file://DragonBall/db134.rm
file://DragonBall/db135.rm
file://DragonBall/db136.rm
file://DragonBall/db137.rm
file://DragonBall/db138.rm
Very easy. Use notepad to open a new file, type this inside:
file://link to file1
file://link to file2
(type as many as you want)
Close file. Rename it to FileName.rm
Then you`re done!!!!
Ex:
I put my playlist file here: C:\Movies\7VNR
And the movie files are in C:\Movies\7VNR\DragonBall
Then inside my playlist file I`ll have something like this:
file://DragonBall/db134.rm
file://DragonBall/db135.rm
file://DragonBall/db136.rm
file://DragonBall/db137.rm
file://DragonBall/db138.rm
10 reasons why PCs crash U must Know
Fatal error: the system has become unstable or is busy," it says. "Enter to return to Windows or press Control-Alt-Delete to restart your computer. If you do this you will lose any unsaved information in all open applications."
You have just been struck by the Blue Screen of Death. Anyone who uses Mcft Windows will be familiar with this. What can you do? More importantly, how can you prevent it happening?
1 Hardware conflict
The number one reason why Windows crashes is hardware conflict. Each hardware device communicates to other devices through an interrupt request channel (IRQ). These are supposed to be unique for each device.
For example, a printer usually connects internally on IRQ 7. The keyboard usually uses IRQ 1 and the floppy disk drive IRQ 6. Each device will try to hog a single IRQ for itself.
If there are a lot of devices, or if they are not installed properly, two of them may end up sharing the same IRQ number. When the user tries to use both devices at the same time, a crash can happen. The way to check if your computer has a hardware conflict is through the following route:
* Start-Settings-Control Panel-System-Device Manager.
Often if a device has a problem a yellow '!' appears next to its description in the Device Manager. Highlight Computer (in the Device Manager) and press Properties to see the IRQ numbers used by your computer. If the IRQ number appears twice, two devices may be using it.
Sometimes a device might share an IRQ with something described as 'IRQ holder for PCI steering'. This can be ignored. The best way to fix this problem is to remove the problem device and reinstall it.
Sometimes you may have to find more recent drivers on the internet to make the device function properly. A good resource is www.driverguide.com. If the device is a soundcard, or a modem, it can often be fixed by moving it to a different slot on the motherboard (be careful about opening your computer, as you may void the warranty).
When working inside a computer you should switch it off, unplug the mains lead and touch an unpainted metal surface to discharge any static electricity.
To be fair to Mcft, the problem with IRQ numbers is not of its making. It is a legacy problem going back to the first PC designs using the IBM 8086 chip. Initially there were only eight IRQs. Today there are 16 IRQs in a PC. It is easy to run out of them. There are plans to increase the number of IRQs in future designs.
2 Bad Ram
Ram (random-access memory) problems might bring on the blue screen of death with a message saying Fatal Exception Error. A fatal error indicates a serious hardware problem. Sometimes it may mean a part is damaged and will need replacing.
But a fatal error caused by Ram might be caused by a mismatch of chips. For example, mixing 70-nanosecond (70ns) Ram with 60ns Ram will usually force the computer to run all the Ram at the slower speed. This will often crash the machine if the Ram is overworked.
One way around this problem is to enter the BIOS settings and increase the wait state of the Ram. This can make it more stable. Another way to troubleshoot a suspected Ram problem is to rearrange the Ram chips on the motherboard, or take some of them out. Then try to repeat the circumstances that caused the crash. When handling Ram try not to touch the gold connections, as they can be easily damaged.
Parity error messages also refer to Ram. Modern Ram chips are either parity (ECC) or non parity (non-ECC). It is best not to mix the two types, as this can be a cause of trouble.
EMM386 error messages refer to memory problems but may not be connected to bad Ram. This may be due to free memory problems often linked to old Dos-based programmes.
3 BIOS settings
Every motherboard is supplied with a range of chipset settings that are decided in the factory. A common way to access these settings is to press the F2 or delete button during the first few seconds of a boot-up.
Once inside the BIOS, great care should be taken. It is a good idea to write down on a piece of paper all the settings that appear on the screen. That way, if you change something and the computer becomes more unstable, you will know what settings to revert to.
A common BIOS error concerns the CAS latency. This refers to the Ram. Older EDO (extended data out) Ram has a CAS latency of 3. Newer SDRam has a CAS latency of 2. Setting the wrong figure can cause the Ram to lock up and freeze the computer's display.
Mcft Windows is better at allocating IRQ numbers than any BIOS. If possible set the IRQ numbers to Auto in the BIOS. This will allow Windows to allocate the IRQ numbers (make sure the BIOS setting for Plug and Play OS is switched to 'yes' to allow Windows to do this.).
4 Hard disk drives
After a few weeks, the information on a hard disk drive starts to become piecemeal or fragmented. It is a good idea to defragment the hard disk every week or so, to prevent the disk from causing a screen freeze. Go to
* Start-Programs-Accessories-System Tools-Disk Defragmenter
This will start the procedure. You will be unable to write data to the hard drive (to save it) while the disk is defragmenting, so it is a good idea to schedule the procedure for a period of inactivity using the Task Scheduler.
The Task Scheduler should be one of the small icons on the bottom right of the Windows opening page (the desktop).
Some lockups and screen freezes caused by hard disk problems can be solved by reducing the read-ahead optimisation. This can be adjusted by going to
* Start-Settings-Control Panel-System Icon-Performance-File System-Hard Disk.
Hard disks will slow down and crash if they are too full. Do some housekeeping on your hard drive every few months and free some space on it. Open the Windows folder on the C drive and find the Temporary Internet Files folder. Deleting the contents (not the folder) can free a lot of space.
Empty the Recycle Bin every week to free more space. Hard disk drives should be scanned every week for errors or bad sectors. Go to
* Start-Programs-Accessories-System Tools-ScanDisk
Otherwise assign the Task Scheduler to perform this operation at night when the computer is not in use.
5 Fatal OE exceptions and VXD errors
Fatal OE exception errors and VXD errors are often caused by video card problems.
These can often be resolved easily by reducing the resolution of the video display. Go to
* Start-Settings-Control Panel-Display-Settings
Here you should slide the screen area bar to the left. Take a look at the colour settings on the left of that window. For most desktops, high colour 16-bit depth is adequate.
If the screen freezes or you experience system lockups it might be due to the video card. Make sure it does not have a hardware conflict. Go to
* Start-Settings-Control Panel-System-Device Manager
Here, select the + beside Display Adapter. A line of text describing your video card should appear. Select it (make it blue) and press properties. Then select Resources and select each line in the window. Look for a message that says No Conflicts.
If you have video card hardware conflict, you will see it here. Be careful at this point and make a note of everything you do in case you make things worse.
The way to resolve a hardware conflict is to uncheck the Use Automatic Settings box and hit the Change Settings button. You are searching for a setting that will display a No Conflicts message.
Another useful way to resolve video problems is to go to
* Start-Settings-Control Panel-System-Performance-Graphics
Here you should move the Hardware Acceleration slider to the left. As ever, the most common cause of problems relating to graphics cards is old or faulty drivers (a driver is a small piece of software used by a computer to communicate with a device).
Look up your video card's manufacturer on the internet and search for the most recent drivers for it.
6 Viruses
Often the first sign of a virus infection is instability. Some viruses erase the boot sector of a hard drive, making it impossible to start. This is why it is a good idea to create a Windows start-up disk. Go to
* Start-Settings-Control Panel-Add/Remove Programs
Here, look for the Start Up Disk tab. Virus protection requires constant vigilance.
A virus scanner requires a list of virus signatures in order to be able to identify viruses. These signatures are stored in a DAT file. DAT files should be updated weekly from the website of your antivirus software manufacturer.
An excellent antivirus programme is McAfee VirusScan by Network Associates ( www.nai.com). Another is Norton AntiVirus 2000, made by Symantec ( www.symantec.com).
7 Printers
The action of sending a document to print creates a bigger file, often called a postscript file.
Printers have only a small amount of memory, called a buffer. This can be easily overloaded. Printing a document also uses a considerable amount of CPU power. This will also slow down the computer's performance.
If the printer is trying to print unusual characters, these might not be recognised, and can crash the computer. Sometimes printers will not recover from a crash because of confusion in the buffer. A good way to clear the buffer is to unplug the printer for ten seconds. Booting up from a powerless state, also called a cold boot, will restore the printer's default settings and you may be able to carry on.
8 Software
A common cause of computer crash is faulty or badly-installed software. Often the problem can be cured by uninstalling the software and then reinstalling it. Use Norton Uninstall or Uninstall Shield to remove an application from your system properly. This will also remove references to the programme in the System Registry and leaves the way clear for a completely fresh copy.
The System Registry can be corrupted by old references to obsolete software that you thought was uninstalled. Use Reg Cleaner by Jouni Vuorio to clean up the System Registry and remove obsolete entries. It works on Windows 95, Windows 98, Windows 98 SE (Second Edition), Windows Millennium Edition (ME), NT4 and Windows 2000.
Read the instructions and use it carefully so you don't do permanent damage to the Registry. If the Registry is damaged you will have to reinstall your operating system. Reg Cleaner can be obtained from www.jv16.org
Often a Windows problem can be resolved by entering Safe Mode. This can be done during start-up. When you see the message "Starting Windows" press F4. This should take you into Safe Mode.
Safe Mode loads a minimum of drivers. It allows you to find and fix problems that prevent Windows from loading properly.
Sometimes installing Windows is difficult because of unsuitable BIOS settings. If you keep getting SUWIN error messages (Windows setup) during the Windows installation, then try entering the BIOS and disabling the CPU internal cache. Try to disable the Level 2 (L2) cache if that doesn't work.
Remember to restore all the BIOS settings back to their former settings following installation.
9 Overheating
Central processing units (CPUs) are usually equipped with fans to keep them cool. If the fan fails or if the CPU gets old it may start to overheat and generate a particular kind of error called a kernel error. This is a common problem in chips that have been overclocked to operate at higher speeds than they are supposed to.
One remedy is to get a bigger better fan and install it on top of the CPU. Specialist cooling fans/heatsinks are available from www.computernerd.com or www.coolit.com
CPU problems can often be fixed by disabling the CPU internal cache in the BIOS. This will make the machine run more slowly, but it should also be more stable.
10 Power supply problems
With all the new construction going on around the country the steady supply of electricity has become disrupted. A power surge or spike can crash a computer as easily as a power cut.
If this has become a nuisance for you then consider buying a uninterrupted power supply (UPS). This will give you a clean power supply when there is electricity, and it will give you a few minutes to perform a controlled shutdown in case of a power cut.
It is a good investment if your data are critical, because a power cut will cause any unsaved data to be lost.
You have just been struck by the Blue Screen of Death. Anyone who uses Mcft Windows will be familiar with this. What can you do? More importantly, how can you prevent it happening?
1 Hardware conflict
The number one reason why Windows crashes is hardware conflict. Each hardware device communicates to other devices through an interrupt request channel (IRQ). These are supposed to be unique for each device.
For example, a printer usually connects internally on IRQ 7. The keyboard usually uses IRQ 1 and the floppy disk drive IRQ 6. Each device will try to hog a single IRQ for itself.
If there are a lot of devices, or if they are not installed properly, two of them may end up sharing the same IRQ number. When the user tries to use both devices at the same time, a crash can happen. The way to check if your computer has a hardware conflict is through the following route:
* Start-Settings-Control Panel-System-Device Manager.
Often if a device has a problem a yellow '!' appears next to its description in the Device Manager. Highlight Computer (in the Device Manager) and press Properties to see the IRQ numbers used by your computer. If the IRQ number appears twice, two devices may be using it.
Sometimes a device might share an IRQ with something described as 'IRQ holder for PCI steering'. This can be ignored. The best way to fix this problem is to remove the problem device and reinstall it.
Sometimes you may have to find more recent drivers on the internet to make the device function properly. A good resource is www.driverguide.com. If the device is a soundcard, or a modem, it can often be fixed by moving it to a different slot on the motherboard (be careful about opening your computer, as you may void the warranty).
When working inside a computer you should switch it off, unplug the mains lead and touch an unpainted metal surface to discharge any static electricity.
To be fair to Mcft, the problem with IRQ numbers is not of its making. It is a legacy problem going back to the first PC designs using the IBM 8086 chip. Initially there were only eight IRQs. Today there are 16 IRQs in a PC. It is easy to run out of them. There are plans to increase the number of IRQs in future designs.
2 Bad Ram
Ram (random-access memory) problems might bring on the blue screen of death with a message saying Fatal Exception Error. A fatal error indicates a serious hardware problem. Sometimes it may mean a part is damaged and will need replacing.
But a fatal error caused by Ram might be caused by a mismatch of chips. For example, mixing 70-nanosecond (70ns) Ram with 60ns Ram will usually force the computer to run all the Ram at the slower speed. This will often crash the machine if the Ram is overworked.
One way around this problem is to enter the BIOS settings and increase the wait state of the Ram. This can make it more stable. Another way to troubleshoot a suspected Ram problem is to rearrange the Ram chips on the motherboard, or take some of them out. Then try to repeat the circumstances that caused the crash. When handling Ram try not to touch the gold connections, as they can be easily damaged.
Parity error messages also refer to Ram. Modern Ram chips are either parity (ECC) or non parity (non-ECC). It is best not to mix the two types, as this can be a cause of trouble.
EMM386 error messages refer to memory problems but may not be connected to bad Ram. This may be due to free memory problems often linked to old Dos-based programmes.
3 BIOS settings
Every motherboard is supplied with a range of chipset settings that are decided in the factory. A common way to access these settings is to press the F2 or delete button during the first few seconds of a boot-up.
Once inside the BIOS, great care should be taken. It is a good idea to write down on a piece of paper all the settings that appear on the screen. That way, if you change something and the computer becomes more unstable, you will know what settings to revert to.
A common BIOS error concerns the CAS latency. This refers to the Ram. Older EDO (extended data out) Ram has a CAS latency of 3. Newer SDRam has a CAS latency of 2. Setting the wrong figure can cause the Ram to lock up and freeze the computer's display.
Mcft Windows is better at allocating IRQ numbers than any BIOS. If possible set the IRQ numbers to Auto in the BIOS. This will allow Windows to allocate the IRQ numbers (make sure the BIOS setting for Plug and Play OS is switched to 'yes' to allow Windows to do this.).
4 Hard disk drives
After a few weeks, the information on a hard disk drive starts to become piecemeal or fragmented. It is a good idea to defragment the hard disk every week or so, to prevent the disk from causing a screen freeze. Go to
* Start-Programs-Accessories-System Tools-Disk Defragmenter
This will start the procedure. You will be unable to write data to the hard drive (to save it) while the disk is defragmenting, so it is a good idea to schedule the procedure for a period of inactivity using the Task Scheduler.
The Task Scheduler should be one of the small icons on the bottom right of the Windows opening page (the desktop).
Some lockups and screen freezes caused by hard disk problems can be solved by reducing the read-ahead optimisation. This can be adjusted by going to
* Start-Settings-Control Panel-System Icon-Performance-File System-Hard Disk.
Hard disks will slow down and crash if they are too full. Do some housekeeping on your hard drive every few months and free some space on it. Open the Windows folder on the C drive and find the Temporary Internet Files folder. Deleting the contents (not the folder) can free a lot of space.
Empty the Recycle Bin every week to free more space. Hard disk drives should be scanned every week for errors or bad sectors. Go to
* Start-Programs-Accessories-System Tools-ScanDisk
Otherwise assign the Task Scheduler to perform this operation at night when the computer is not in use.
5 Fatal OE exceptions and VXD errors
Fatal OE exception errors and VXD errors are often caused by video card problems.
These can often be resolved easily by reducing the resolution of the video display. Go to
* Start-Settings-Control Panel-Display-Settings
Here you should slide the screen area bar to the left. Take a look at the colour settings on the left of that window. For most desktops, high colour 16-bit depth is adequate.
If the screen freezes or you experience system lockups it might be due to the video card. Make sure it does not have a hardware conflict. Go to
* Start-Settings-Control Panel-System-Device Manager
Here, select the + beside Display Adapter. A line of text describing your video card should appear. Select it (make it blue) and press properties. Then select Resources and select each line in the window. Look for a message that says No Conflicts.
If you have video card hardware conflict, you will see it here. Be careful at this point and make a note of everything you do in case you make things worse.
The way to resolve a hardware conflict is to uncheck the Use Automatic Settings box and hit the Change Settings button. You are searching for a setting that will display a No Conflicts message.
Another useful way to resolve video problems is to go to
* Start-Settings-Control Panel-System-Performance-Graphics
Here you should move the Hardware Acceleration slider to the left. As ever, the most common cause of problems relating to graphics cards is old or faulty drivers (a driver is a small piece of software used by a computer to communicate with a device).
Look up your video card's manufacturer on the internet and search for the most recent drivers for it.
6 Viruses
Often the first sign of a virus infection is instability. Some viruses erase the boot sector of a hard drive, making it impossible to start. This is why it is a good idea to create a Windows start-up disk. Go to
* Start-Settings-Control Panel-Add/Remove Programs
Here, look for the Start Up Disk tab. Virus protection requires constant vigilance.
A virus scanner requires a list of virus signatures in order to be able to identify viruses. These signatures are stored in a DAT file. DAT files should be updated weekly from the website of your antivirus software manufacturer.
An excellent antivirus programme is McAfee VirusScan by Network Associates ( www.nai.com). Another is Norton AntiVirus 2000, made by Symantec ( www.symantec.com).
7 Printers
The action of sending a document to print creates a bigger file, often called a postscript file.
Printers have only a small amount of memory, called a buffer. This can be easily overloaded. Printing a document also uses a considerable amount of CPU power. This will also slow down the computer's performance.
If the printer is trying to print unusual characters, these might not be recognised, and can crash the computer. Sometimes printers will not recover from a crash because of confusion in the buffer. A good way to clear the buffer is to unplug the printer for ten seconds. Booting up from a powerless state, also called a cold boot, will restore the printer's default settings and you may be able to carry on.
8 Software
A common cause of computer crash is faulty or badly-installed software. Often the problem can be cured by uninstalling the software and then reinstalling it. Use Norton Uninstall or Uninstall Shield to remove an application from your system properly. This will also remove references to the programme in the System Registry and leaves the way clear for a completely fresh copy.
The System Registry can be corrupted by old references to obsolete software that you thought was uninstalled. Use Reg Cleaner by Jouni Vuorio to clean up the System Registry and remove obsolete entries. It works on Windows 95, Windows 98, Windows 98 SE (Second Edition), Windows Millennium Edition (ME), NT4 and Windows 2000.
Read the instructions and use it carefully so you don't do permanent damage to the Registry. If the Registry is damaged you will have to reinstall your operating system. Reg Cleaner can be obtained from www.jv16.org
Often a Windows problem can be resolved by entering Safe Mode. This can be done during start-up. When you see the message "Starting Windows" press F4. This should take you into Safe Mode.
Safe Mode loads a minimum of drivers. It allows you to find and fix problems that prevent Windows from loading properly.
Sometimes installing Windows is difficult because of unsuitable BIOS settings. If you keep getting SUWIN error messages (Windows setup) during the Windows installation, then try entering the BIOS and disabling the CPU internal cache. Try to disable the Level 2 (L2) cache if that doesn't work.
Remember to restore all the BIOS settings back to their former settings following installation.
9 Overheating
Central processing units (CPUs) are usually equipped with fans to keep them cool. If the fan fails or if the CPU gets old it may start to overheat and generate a particular kind of error called a kernel error. This is a common problem in chips that have been overclocked to operate at higher speeds than they are supposed to.
One remedy is to get a bigger better fan and install it on top of the CPU. Specialist cooling fans/heatsinks are available from www.computernerd.com or www.coolit.com
CPU problems can often be fixed by disabling the CPU internal cache in the BIOS. This will make the machine run more slowly, but it should also be more stable.
10 Power supply problems
With all the new construction going on around the country the steady supply of electricity has become disrupted. A power surge or spike can crash a computer as easily as a power cut.
If this has become a nuisance for you then consider buying a uninterrupted power supply (UPS). This will give you a clean power supply when there is electricity, and it will give you a few minutes to perform a controlled shutdown in case of a power cut.
It is a good investment if your data are critical, because a power cut will cause any unsaved data to be lost.
Friday, April 6, 2012
cannot use my password to get back into Windows XP
Because of the security features built into Windows XP, it is virtually impossible to get back into the system without the password.
You have several options to try and get around this problem.
If you have access to another user account with administrator rights, you can use that account to change the password
of the account that is locked out. You can also use the default Administrator account that is built into Windows XP.
First you need to boot the system into Safe Mode.
1.Restart your system.
2.When you see the blue Dell globe or screen, press the ( F8 ) key about 3 times a second.
3.You should get the Windows startup menu. Use the (Up or Down) arrow keys to highlight (SafeMode)
4.Press (Enter) on (Safe Mode), then press (Enter) on (Windows XP).
5.The system should boot to Safe Mode.
Once you are at the Account Log on Screen, click on the icon
for the user account with administrator rights, or click on the icon
for the administrators account.
Note: For Home the Administrator account isn't normally shown & in Safe Mode you have to press Ctrl+Alt+Delete keys twice to show.
For PRO you can do this in normal mode
When the system has booted to the desktop, use the following steps to change the accounts password.
1.Click Start, Control Panel, Administrative Tools.
2.Click Computer Management.
3.Double click Local Users and Groups, double click the folder Users.
4.Right click on the account name that is locked out, and click on Set Password.
5.You may get a warning message about changing the password, simply click proceed.
6.Leave the New Password box blank, also leave the Confirm Password box blank.
7.Click OK, and OK again.
8.Then close all Windows, reboot the system and try to log in.
There are also applications that can recover the password for you.
The following companies provide these applications at a cost.
iOpus® Password Recovery XP here.
LostPassword.com, here.
Asterisk Password Recovery XP v1.89 here.
Windows XP / 2000 / NT Key here.
If the above information does not help in recovering the password, the only option left is to
format the hard drive then reinstall Windows and the system software.
You have several options to try and get around this problem.
If you have access to another user account with administrator rights, you can use that account to change the password
of the account that is locked out. You can also use the default Administrator account that is built into Windows XP.
First you need to boot the system into Safe Mode.
1.Restart your system.
2.When you see the blue Dell globe or screen, press the ( F8 ) key about 3 times a second.
3.You should get the Windows startup menu. Use the (Up or Down) arrow keys to highlight (SafeMode)
4.Press (Enter) on (Safe Mode), then press (Enter) on (Windows XP).
5.The system should boot to Safe Mode.
Once you are at the Account Log on Screen, click on the icon
for the user account with administrator rights, or click on the icon
for the administrators account.
Note: For Home the Administrator account isn't normally shown & in Safe Mode you have to press Ctrl+Alt+Delete keys twice to show.
For PRO you can do this in normal mode
When the system has booted to the desktop, use the following steps to change the accounts password.
1.Click Start, Control Panel, Administrative Tools.
2.Click Computer Management.
3.Double click Local Users and Groups, double click the folder Users.
4.Right click on the account name that is locked out, and click on Set Password.
5.You may get a warning message about changing the password, simply click proceed.
6.Leave the New Password box blank, also leave the Confirm Password box blank.
7.Click OK, and OK again.
8.Then close all Windows, reboot the system and try to log in.
There are also applications that can recover the password for you.
The following companies provide these applications at a cost.
iOpus® Password Recovery XP here.
LostPassword.com, here.
Asterisk Password Recovery XP v1.89 here.
Windows XP / 2000 / NT Key here.
If the above information does not help in recovering the password, the only option left is to
format the hard drive then reinstall Windows and the system software.
Convert Stubborn Webpage To .pdf
I have come across some websites that i wanted to save the page for later review. I found that i was having some problems with certain sites. I found a way around it.
what you need:adobe acrobat 6 pro or better
popupcop
there may be a simpler way to do this but i found that this works:
when at a webpage that you want to copy (YOU MUST BE USING IE AND HAVE BOTH POPUPCOP INSTALLED AND ADOBE ACROBAT 6 PRO OR HIGHER, ACROBAT ICON MUST BE IN IE TOOLBAR TO CONVERT TO .PDF), slide popupcops popup intensity bar to the far left, now click on adobe acrobat icon to convert webpage to .pdf document. I have yet to find a webpage where this trick does not work.
what you need:adobe acrobat 6 pro or better
popupcop
there may be a simpler way to do this but i found that this works:
when at a webpage that you want to copy (YOU MUST BE USING IE AND HAVE BOTH POPUPCOP INSTALLED AND ADOBE ACROBAT 6 PRO OR HIGHER, ACROBAT ICON MUST BE IN IE TOOLBAR TO CONVERT TO .PDF), slide popupcops popup intensity bar to the far left, now click on adobe acrobat icon to convert webpage to .pdf document. I have yet to find a webpage where this trick does not work.
Thursday, April 5, 2012
how to hack windows
In this post i am going to show u how to hack any windows password with out knowing the old one directly from admin account in easy way ;)
for this ask your friend to log on administartor . if he goes out of the room to do any work . u have doo these simple steps
1.go to run and type cmd there
for this ask your friend to log on administartor . if he goes out of the room to do any work . u have doo these simple steps
1.go to run and type cmd there
Wednesday, April 4, 2012
Recover a Corrupted System File
If an essential Windows file gets whacked by a virus or otherwise corrupted, restore it from the Windows CD. Search the CD for the filename, replacing the last character with an underscore; for example, Notepad.ex_. If it's found, open a command prompt and enter the command EXPAND, followed by the full pathname of the file and of the desired destination: EXPAND D:\SETUP\NOTEPAD.EX_ C:\Windows\NOTEPAD.EXE. If either pathname contains any spaces, surround it with double quotes.
If the file isn't found, search on the unmodified filename. It will probably be inside a CAB file, which Win XP treats as a folder. Simply right-drag and copy the file to the desired location. In other Windows platforms, search for a file matching *.cab that contains the filename. When the search is done, open a command prompt and enter EXTRACT /L followed by the desired location, the full pathname of the CAB file, and the desired filename; for example: EXTRACT /L C:\Windows D:\I386\Driver.cab Notepad.exe. Again, if the destination or CAB file pathname contains spaces, surround it with double quotes.
If the file isn't found, search on the unmodified filename. It will probably be inside a CAB file, which Win XP treats as a folder. Simply right-drag and copy the file to the desired location. In other Windows platforms, search for a file matching *.cab that contains the filename. When the search is done, open a command prompt and enter EXTRACT /L followed by the desired location, the full pathname of the CAB file, and the desired filename; for example: EXTRACT /L C:\Windows D:\I386\Driver.cab Notepad.exe. Again, if the destination or CAB file pathname contains spaces, surround it with double quotes.
Translating Binary to Text
Contents
1. Introduction
2. The Binary System
3. Converting Binary to ASCII (Text)
Introduction:
We’ve all seen binary code. We’ve come to think of them as a bunch of ones and zeroes in long strings…
010010101010101001101011
But these ones and zeroes can also represent decimal numbers. First off, I will show you how to read these numbers as the decimal numbers we’re used to in our daily life. Then, I will show you how to use those numbers and your keypad to translate them into text. Note that your computer doesn’t use the decimal system, so technically, when it converts binary to text, it doesn’t go through the process I will show you. This is just a divertive way of explaining you how the binary system works.
The Binary System:
Here’s a simple example of binary:
10101
Let’s think of the example above as empty slots:
_ _ _ _ _
First off, you read binary from right-to-left. It’s just the way it’s designed. The first slot from the right represents a value of one, the second from the right a value of two, the third from the right a value of four, the fourth from the right a value of eight, the fifth from the right a value of sixteen, and the cycle continues by multiples of 2. This will never change.
By putting a 1 or a 0 in those slots you are either saying you want to corresponding value that’s attached to that slot or you don’t. A 1 means yes, and a 0 means no. For example, putting a zero in the first slot from the right, but a 1 in the second slot from the right means you want a two, but not a one:
_ _ _ 1 0
As such, the number above equals to a decimal value of two.
As an example, let’s say you want to represent eight in binary form. Well, thinking about the slots, you want the first slot to be 0 because you don’t want a one, you want the second slot to also be 0 because you don’t want a two, you want the third slot to also to be 0 because you don’t want a four, but you want the fifth slot to be 1 because you want a value of eight. As such, eight in binary form is:
1 0 0 0 (or simply 1000 without those underlines)
Now it is important to note that the amount of zeroes that precede the first value of one from the left is unimportant. So for example:
1 0 0 0 is the same as 0 0 0 1 0 0 0 (1000 = 000100)
To get it cleared up, here’s another example:
0 1 is the same as 1
Exercises: What do the following equal in decimal terms?
a) 100
b] 000100
c) 100000
d) 0010
Answers:
a) 4
b] 4
c) 32
d) 2
If you got the answers above right, then you pretty much understand the basics of binary.
Let’s now understand how to get the corresponding decimal values to the numbers which are not multiples of 2.
To get the total value of a binary number, add the values corresponding to each slot. So, for example, three in binary would be:
11
The above corresponds to three because if you add the total values of all the slots, that is to say a one from the slot to the right, and a two from the second slot to the right, then it equals three.
As another example, let’s say you want to represent 5 in binary terms. Then you would need a value of one to be added to a value of four, and you would not want a value of two:
101 [Reading from the right: 1(one) + 0(two) + 1(four) = five]
Here’s an additional example:
001011 [Reading from the right: 1(one) + 1(two) + 0(four) + 1(eight) + 0(sixteen) + 0(thirty-two) = eleven)
Exercises: What do the following equal in decimal terms?
a) 11011
b] 110
c) 010101
d) 10110
Answers:
a) 27
b] 6
c) 21
d) 22
If you got the above questions correct [without cheating], then you essentially understand the binary system. Understanding the binary system was the hard part. What follows is pretty easy.
3. Converting Binary to ASCII (Text)
ASCII is essentially the letters, numbers and symbols that are stored in our computers through the use of fonts. When the keyboard relays the buttons you pressed, it sends in a code which is then converted to the ASCII equivalent of “k” or “5” or whatever key you pressed.
Here’s an example of a message “hidden” in binary text:
0100100001100101011011000110110001101111
Now there are only so many letters, numbers and symbols stored for ASCII. Having sets of 8 digits for their binary equivalent is more than enough to represent all of these letters and the like. As such, all strings that represent text like in the above are separated into bits of 8 for simplicity:
01001000 01100101 01101100 01101100 01101111
Okay, so our example message was separated into 8 digit strings. The decimal value for each of these strings in the example was calculated for you.
01001000 = 72
01100101 = 101
01101100 = 108
01101100 = 108
01101111 = 111
The result was 72,101,108,108,111. Now, there is something called the ASCII table. It essentially corresponds to the binary numbers from yore to the equivalent letters/symbols/numbers. But since we found the decimal values of these binary strings, we can use a major shortcut.
By pressing ALT + [The Number], you will get the ASCII equivalent of that number. For example, by pressing the ALT key and at then (while keeping it down) the numbers 72 in any text editor, you will get the corresponding “H” to show up.
Let’s do so for the entire example message:
72 = H
101 = e
108 = l
108 = l
111 = o
So the entire “hidden” message translates to “Hello”.
Exercise: Decode the following message
01000011011011110110111001100111011100100110000101110100011101010110110001100001
011101000
1101001011011110110111001110011 00100001
Hint: The first step on your way to decoding the message (separated into bytes for you)
01000011 01101111 01101110 01100111 01110010 01100001 01110100 01110101 01101100 01100001 01110100 01101001 01101111 01101110 01110011 00100001
1. Introduction
2. The Binary System
3. Converting Binary to ASCII (Text)
Introduction:
We’ve all seen binary code. We’ve come to think of them as a bunch of ones and zeroes in long strings…
010010101010101001101011
But these ones and zeroes can also represent decimal numbers. First off, I will show you how to read these numbers as the decimal numbers we’re used to in our daily life. Then, I will show you how to use those numbers and your keypad to translate them into text. Note that your computer doesn’t use the decimal system, so technically, when it converts binary to text, it doesn’t go through the process I will show you. This is just a divertive way of explaining you how the binary system works.
The Binary System:
Here’s a simple example of binary:
10101
Let’s think of the example above as empty slots:
_ _ _ _ _
First off, you read binary from right-to-left. It’s just the way it’s designed. The first slot from the right represents a value of one, the second from the right a value of two, the third from the right a value of four, the fourth from the right a value of eight, the fifth from the right a value of sixteen, and the cycle continues by multiples of 2. This will never change.
By putting a 1 or a 0 in those slots you are either saying you want to corresponding value that’s attached to that slot or you don’t. A 1 means yes, and a 0 means no. For example, putting a zero in the first slot from the right, but a 1 in the second slot from the right means you want a two, but not a one:
_ _ _ 1 0
As such, the number above equals to a decimal value of two.
As an example, let’s say you want to represent eight in binary form. Well, thinking about the slots, you want the first slot to be 0 because you don’t want a one, you want the second slot to also be 0 because you don’t want a two, you want the third slot to also to be 0 because you don’t want a four, but you want the fifth slot to be 1 because you want a value of eight. As such, eight in binary form is:
1 0 0 0 (or simply 1000 without those underlines)
Now it is important to note that the amount of zeroes that precede the first value of one from the left is unimportant. So for example:
1 0 0 0 is the same as 0 0 0 1 0 0 0 (1000 = 000100)
To get it cleared up, here’s another example:
0 1 is the same as 1
Exercises: What do the following equal in decimal terms?
a) 100
b] 000100
c) 100000
d) 0010
Answers:
a) 4
b] 4
c) 32
d) 2
If you got the answers above right, then you pretty much understand the basics of binary.
Let’s now understand how to get the corresponding decimal values to the numbers which are not multiples of 2.
To get the total value of a binary number, add the values corresponding to each slot. So, for example, three in binary would be:
11
The above corresponds to three because if you add the total values of all the slots, that is to say a one from the slot to the right, and a two from the second slot to the right, then it equals three.
As another example, let’s say you want to represent 5 in binary terms. Then you would need a value of one to be added to a value of four, and you would not want a value of two:
101 [Reading from the right: 1(one) + 0(two) + 1(four) = five]
Here’s an additional example:
001011 [Reading from the right: 1(one) + 1(two) + 0(four) + 1(eight) + 0(sixteen) + 0(thirty-two) = eleven)
Exercises: What do the following equal in decimal terms?
a) 11011
b] 110
c) 010101
d) 10110
Answers:
a) 27
b] 6
c) 21
d) 22
If you got the above questions correct [without cheating], then you essentially understand the binary system. Understanding the binary system was the hard part. What follows is pretty easy.
3. Converting Binary to ASCII (Text)
ASCII is essentially the letters, numbers and symbols that are stored in our computers through the use of fonts. When the keyboard relays the buttons you pressed, it sends in a code which is then converted to the ASCII equivalent of “k” or “5” or whatever key you pressed.
Here’s an example of a message “hidden” in binary text:
0100100001100101011011000110110001101111
Now there are only so many letters, numbers and symbols stored for ASCII. Having sets of 8 digits for their binary equivalent is more than enough to represent all of these letters and the like. As such, all strings that represent text like in the above are separated into bits of 8 for simplicity:
01001000 01100101 01101100 01101100 01101111
Okay, so our example message was separated into 8 digit strings. The decimal value for each of these strings in the example was calculated for you.
01001000 = 72
01100101 = 101
01101100 = 108
01101100 = 108
01101111 = 111
The result was 72,101,108,108,111. Now, there is something called the ASCII table. It essentially corresponds to the binary numbers from yore to the equivalent letters/symbols/numbers. But since we found the decimal values of these binary strings, we can use a major shortcut.
By pressing ALT + [The Number], you will get the ASCII equivalent of that number. For example, by pressing the ALT key and at then (while keeping it down) the numbers 72 in any text editor, you will get the corresponding “H” to show up.
Let’s do so for the entire example message:
72 = H
101 = e
108 = l
108 = l
111 = o
So the entire “hidden” message translates to “Hello”.
Exercise: Decode the following message
01000011011011110110111001100111011100100110000101110100011101010110110001100001
011101000
1101001011011110110111001110011 00100001
Hint: The first step on your way to decoding the message (separated into bytes for you)
01000011 01101111 01101110 01100111 01110010 01100001 01110100 01110101 01101100 01100001 01110100 01101001 01101111 01101110 01110011 00100001
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