Computer Viruses and their Effects on Computers

Paper Summary:

This paper deals with the different types of computer viruses, discussing how infection occurs and how they can be eliminated. A brief history of computer viruses and some anti-viral techniques are also explained.

Outline
What is a Computer Virus?
Brief History of Computer Virus
Virus Types
How Infection Occurs
Preventing Infections
Conclusion and Recommendation

From the Paper:

"Computer virus is defined as a parasitic computer program that infects another legitimate program, which is sometimes called the "host." This program is mainly designed to replicate and to avoid detection. Just like any other program, it must be executed first by loading it from the computer's memory so that the computer follows the virus's code. Some of the viruses are harmless and simply trick the computer users into believing that their computers have been infected. Unfortunately, most of the viruses are very malicious and can do big damage to the computer. It can dislocate or change data files, display an annoying message or picture, cause the operating system to malfunction or even erase the entire content of a hard disk."

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