Question

What is a computer virus?

Answer 1

A computer virus is a computer program or a piece of code that is loaded onto your computer without your knowledge and run against your consent. Virus has a property to replicate itself and spread itself from one computer to another computer.

Virus is a word which does not have any official full form. We just have made up a full form which is circulating world wide.
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Answer 2

here is your answer that a computer virus is
an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.

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