Computer Virus

The various types of viruses are: -

a) Program viruses. Infect computer programs and become active when the infected program is run.

b) Boot sector viruses. Infect diskettes and hard disks and become active when an infected disk is used to start the computer.

c) Macro viruses. Infect documents (files) through the macro programming capabilities of some newer programs. Macro viruses become active when an infected document is opened, and the program opening the document has its macro capabilities turned on (enabled).