What is VIRUS?

We all know that virus is destructive program which can work as non living residence of computer.Of course I am not going to explain the same things but some new points to same things.

Virus is anything which can affect on computer's sound working.It may replicate itself in the memory locations leading it to damage of even hard disk.It can be spread by various methods such as CDs,DVDs,PEN DRIVES means secondary storage devices.It is not necessary that it would spread only through secondary storage devices.It is also seen that most of viruses are spread through downloading content from internet.Some of the anti-viruses are also programmed to work as viruses after their usage.

Virus is actually a executable program which can run either in background without knowing to user or can be get activated after clicking on some files or folders or might be a shortcut to files or folders.This file contains some commands which can be executed by methods mentioned above.

I was asked several times for problem of computer being restarted within very short intervals of time or opening of so many folders at the same time resulting to HANG of the computer or simply shutting down the computer showing some message like "YOUR COMP IS AFFECTED BY _ _ _ VIRUS" etc.

Actually these are nothing but the basic virus programs which can created using NOTEPAD in Ms-Office.

After learning basic virus programming we may get brief idea about viruses,their working & prevention from such simple viruses.

We will discuss on such simple viruses in the next posts.