Question

What is viruses in computers​

Answer 1

Explanation:

A computer virus, much like a flu virus, is designed to spread from host to host and has the ability to replicate itself. Similarly, in the same way that flu viruses cannot reproduce without a host cell, computer viruses cannot reproduce and spread without programming such as a file or document.

Answer 2

αnswer :-

A computer virus is a program or a set of programs that disrupts normal functioning of a computer. It destroys and infects the data present in the computer. VIRUS stands for Vital Information Resources Under Seize. It enters into the computer without the permission or knowledge of the user. Virus programs are self-replicating programs, which continuously expand their reach by infecting more and more computer files.

 

Types of Virus ::  

1. Boot sector virus ( Example – Stone Virus )  

2. Program file virus ( Example – Sunday )  

3. Multipartite virus ( Example – Invader )  

4. Polymorphic virus ( Example – Elkern )  

5. Network virus ( Example – Nimda )  

6. Macro Virus ( Example – Bablas )  

Fact :-  

• My Doom is considered to be the most expensive virus in the world and in the cyber security history.