History Of Computer Viruses

A computer virus is the nightmare of every computer user. It is a computer program that can replicate itself and corrupt a computer, attacking several programs depending on its severity. Virus is, in common, a general term for all kinds of such programs, malware and spyware, although the latter do not have the ability to replicate.

Different Types Of Computer Networks

A computer network is a connection between two or more computers and the connection is used to establish communication and also for sharing resources. Resources shared include printers, scanners, memory space and so on. Today, most communication take place through computer networks since it provides a simple, quick and cost effective means for information and resource sharing.