A computer virus is a program that attaches itself to, overwrites and/or otherwise replaces another program in order to reproduce itself without the knowledge of the computer user. Generally, the first thing a virus does is attach itself to other executable files in such a way that the virus code is in effect when the infected files are run. Viruses may be written to multiply, to damage other programs, or to alter certain data. …
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showed last 75 words of 878 total
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