What is a computer virus?
According to Wikipedia, ” a computer virus is a computer program that can copy itself and infect a computer without permission or knowledge of the user. The term “virus” is also commonly used, albeit erroneously, to refer to many different types of malware and adware programs.”
Why can they do so much damage and cost people so much money?
They can crash computers or servers, erasing a gargantuan amounts of of data. Since much of our world today relies on technology, a computer virus can stop society from functioning temporarily.
