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CBSE Class 12 Informatics Practices Question 54 of 177

Societal Impacts — Question 41

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Question 33

What is a computer virus ? How can it affect your computer ?

Answer

A computer virus is a computer program that can infect other computer programs by modifying them in such a way as to include a copy of itself.

Viruses can alter, corrupt and delete files, freeze the computer, flash unknown or unasked messages or display unwanted graphics on the computer screen, play unwanted music and interfere with the computer operation.