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Viruses What happens when your computer is zapped by a virus, a malicious program that at worst could wipe out all your computer files? Your photo of your dog Skippy is gone, and erased is all of your homework assignments that have taken you weeks to grind out. Yes, this is possible and getting a computer virus has become easier and easier throughout the years. As recent as three years ago, a virus could spread from computer to computer mainly through shared floppy disks. Now, just opening up your e-mail can launch a nasty virus into your system. Creating a computer virus is no easy trick. Just like computer games and word-processing software, a virus is a program, or step-by-step instructions that tell a computer what to do. Unlike games and other software, however, a virus attaches itself to other programs in your computer and is essentially a digital parasite. A virus contains instructions that tell it to self-replicate, or copy itself over and over again. When it first enters your computer through an infected floppy disk, e-mail, or a program downloaded from the Internet the virus copies itself to your computer's memory. Fro