Tuesday, April 29, 2008

computer virus

A computer virus is a computer program that can copy itself and infect a computer without permission or knowledge of the user. The term "virus" is also commonly used, albeit erroneously, to refer to many different types of software and hardware programs. The original virus may modify the copies, or the copies may modify themselves, as occurs in a. A virus can only spread from one computer to another when its host is taken to the uninfected computer, for instance by a user sending it over a network or the Internet, or by carrying it on a removable medium such as a Floppy Disk, USB and Drive.


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