Tuesday, November 12, 2019
computer virus :: essays research papers
Overview In the following report, ââ¬Å"computer virusesâ⬠will be explained in detail. A lengthy and informative description of the evolution and history on microcomputer viruses will be given, to give you a background of their origin for some understanding of how they came to be. The next segment in the report is on how to combat computer viruses with the development of anti-virus applications. The current status of microcomputer viruses will also be discussed, naming the most common types of viruses and the most harmful type at this present point in time. Details of the most recent outbreaks of computer viruses, such as the ââ¬Å"Melissaâ⬠, ââ¬Å"I Love Youâ⬠and the most recent ââ¬Å"Anna Kournikovaâ⬠viruses will be explained, and why they are so harmful. I will also give you my recommendations on how to combat this threat of computer viruses, what Anti-virus Applications that I believe should be used, and why updating your virus definitions for these programs on a regular basis is so vital and important in your quest to have a happy and uninfected computer. And finally, I give you my conclusion in which I can only hope that you will find helpful. A History Of Computer Viruses The term ââ¬Å"Virusâ⬠was not used to describe a self-replicating computer program until the American electrical engineer named ââ¬Å"Fred Cohenâ⬠associated the term with it in 1983. In the 1950ââ¬â¢s at Bell Laboratories, ââ¬Å"John von Neumannââ¬â¢sâ⬠theory in which he made in 1949 was put to the test. His theory stated that it was (MS Encarta 98, Virus [computer], History) ââ¬Å"Theoretically possible for a computer program to replicateâ⬠. His theory was tested after a game called ââ¬Å"Core Warsâ⬠was developed whereby (MS Encarta 98, Virus [computer], History) ââ¬Å"Players created tiny computer programs that attacked, erased, and tried to propagate on an opponentââ¬â¢s systemâ⬠. In the late 1960ââ¬â¢s through to the early 1970ââ¬â¢s, the program called ââ¬Å"The Rabbitâ⬠was constantly appearing on the mainframes at the time. Kaspersky (www.avp.ch) ââ¬Å"These programs cloned themselves, occupied system resources, thus lowering the productivity of the systemâ⬠. These viruses were only localised, as they did not spread from one system to another and are thought to have only been pranks or mistakes by programmers. The ââ¬Å"Univac 1108â⬠and ââ¬Å"IBM 360/370â⬠systems were infected with one of the first known computer viruses, ââ¬Å"Pervading Animalâ⬠. This virus attached itself to executable files, which damaged the infected file. In 1986 the first stealth virus hit IBM Compatible PCââ¬â¢s, called the ââ¬Å"BRAINâ⬠virus.
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