What is Computer Virus..??

A computer virus is a computer program (a piece of code) that can replicate itself. It loaded onto your computer without your knowledge and run against your wishes. The term”Virus “is commonly. But erroneously, used to refer to other types of malware .All computer viruses are human-made programs. A simple virus that can make a copy of it (replicate itself) over and over again is relatively easy to produce. This type of virus is known as Memory Resident Viruses Even such simple virus is very dangerous because it will quickly use all available memory and bring your computer to a halt