Software refers to the programs your computer uses to perform the actions you want it to. Learn all about computer software, from Web browsers to the latest operating systems, with our explanations, reviews, videos and prices.
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File-sharing allow millions of people to freely trade MP3 and video files on the Internet. Is it legal? How are the files exchanged? Is there a central database? Find out how the file-sharing structure works and see why it makes it difficult for record labels to sue.
When you use programming to tell a computer what to do, you also get to choose how it's going to do it. That's where computer algorithms come in. The algorithm is the basic technique used to get the job done.
There's a special command your computer sends when your keyboard and mice have been idle for a period of time. Find out how your computer activates your screensaver.
The relational database was born in 1970 when E.F. Codd, a researcher at IBM, wrote a paper outlining the process. At the time, databases were "flat," and stored as one long text file. Learn how the relational database changed the way we work.
As a file-sharing program, Aimster is generally more secure because users have complete control over their files. This AOL program can also hook up with your IM friends.
While Windows is a versatile and powerful operating system, there are times that it can be frustrating. Safe Mode is a special way for Windows to load when there is a system-critical problem that interferes with the normal operation of Windows.
While the original Napster got sued out of business, dozens of free file-sharing utilities have popped up to take its place. Find out how the old Napster worked and why it was vulnerable to legal attacks.
By Jeff Tyson
In the late 1980s, Adobe introduced its Type 1 fonts based on vector graphics. Unlike bitmapped fonts, vector fonts could be made larger or smaller and still look good.
Screensavers used to be necessary due to CRT monitor quirks -- now they're mostly used for entertainment and security. Find out what a screensaver is and how it knows when to kick in.
By Jeff Tyson
What would you do if you could customize the software on your computer? Learn about open source code and how applications might be more useful and error-free in the long term.
If you want to play MP3 files in your car and your car has a CD player in it, or if you want to play them on your home stereo, then what you need to do is move your MP3 files onto a CD. Here's how.
GIF and JPEG formats may be the most commonly used, but there are other useful image formats for more specific purposes. Find out what they are and how to use them.
Get a refresher on the original Napster and why it caused such a storm about intellectual property laws.
How does SETI@home thing work? What do extraterrestrials have to do with screen savers?