Question

what is computer virus

Answer 1

Computer viruses are such like the viruses in the environment . They have the ability to replicate themselves but only in host cells . Computer viruses are created to alter the order of functioning of a computer . Computer viruses spread on through devices like any other virus . 
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Answer 2

A computer virus is a small software program that can spread from one computer system to another and cause interferences with computer operations. A computer virus has the capacity to corrupt or to delete data on your computer and it can use an e-mail program to spread the virus to other email addresses in your online address book. In the worst case scenario, it can even delete everything on your hard disk.it can be caused by social networking also.
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