What is a computer virus

Viruses are generally classified into two major categories:

1) boot viruses, which infect the boot area of floppies and hard disks, and become resident and active at the time of booting the machine.

2) file viruses, which infect one or more types of program files, and activate when the program is run.

Did you know :
that some of the most famous viruses have names after celebrities like Anna Kuornikova and Angelina Jolie.

The most famous or infamous virus is Melissa.

Do you have a "favorite" virus. Please leave a note.