Computer viruses can be classified into several different types. The first and most common type is the virus which infects any application program. On IBM PC’s and clones running under PC-DOS or MS-DOS, most programs and data which do not belong to the operating system itself are stored as files. Each file has a file name eight characters long, and an extent which is three characters long. A typical file might be called “TRUE.TXT”, where “TRUE” is....

Sometimes stealing an entire computer may be too obvious or difficult, but stealing the components inside may be a lot easier. After all, anyone can tell when a computer suddenly disappears from a desk, but who will notice when a computer suddenly loses a hard drive, a video card, an external Zip drive, a trackball, or a memory chip? To stop someone from walking off with an external device, such as an external hard drive or computer speakers, you can glue a ....

Most news media (newspapers, television and radio stations, and magazines) are owned by corporations that rely on other companies to place advertisements and help the media pay their bills. So what are the odds that a newspaper will run a story criticizing a major advertiser, or run a story exposing the media’s corporate owner? More importantly, what news company is going to risk raising the ire of its own government, when doing so could jeopardize that company from atte....

The key to finding anything on the Internet is to use a search engine, but if you ask different search engines to find the same information, each one will find a number of websites not found by the others. Rather than limiting yourself to the tunnel vision of a single search engine, experiment with some of the different search engines listed below, and you may uncover information that your favorite search engine missed. Even better, you may find that one sea....

Nearly all new computers come with a CD-ROM drive, a sound card, and speakers, which can turn any computer into a simple CD audio player. You can play your own audio CDs on your computer, but you may have more fun scouring the Internet for free music to play from your hard disk or a CD-R (CD recordable) drive.One reason there are so many free music files on the Internet is the restrictive nature of the recording industry. In the old d....