Transcription: You depend on your computer to get things done. A healthy computer is a strong computer processing data quickly and reliably. Viruses are written by ill-intentioned hackers to infect your computer and destroy your data. They can take control without your permission or knowledge. Some viruses merely cause your computer to beep or display political messages. Others are extremely destructive. They damage data, delete files, and can even completely erase your hard disk. Your computer can catch a virus when files enter it from disks, a local network, or the internet. Just as a cold virus attaches i ...