Question

what are computer virus ?
write a simple program of virus
fast please it's urgent​ you can edit your answer( to talk )​

Answer 1

Answer:

A computer virus is a malicious software program loaded onto a user's computer without the user's knowledge and performs malicious actions. Description: The term 'computer virus' was first formally defined by Fred Cohen in 1983. Computer viruses never occur naturally. They are always induced by people.

Explanation:

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Answer 2

Answer:

• A living thing, too small to be seen without a special instrument (microscope), that causes disease in people, animals and plants.

• Instructions that are put into a computer program in order to stop it working properly and destroy information.