1949, John von Neumann, menggungkapkan "self-altering automata theory" which is the result of research mathematicians.
1960, Lab BELL (AT&T), experts in the lab BELL (AT&T) dabbled in theory expressed by John von Neumann, by creating a type of game / game. They create a program that can reproduce itself and to destroy the opponent artificial program. Programs that are able to survive and destroy all other programs, will be considered a winner. This game eventually became the favorite game in each computer lab. However, the longer the program that created the more dangerous, so they conduct strict supervision and security of this game.
1980, these programs are ultimately known as the "virus" is successfully spread beyond the laboratory environment, and begin circulating in public.
"A program cans That Infect other programs by modifying Them slighty altered to include a copy of Itself. A virus spreads cans Throughout a computer system or network using the authorization of every user using it to Infect Their programs. Every programs" That gets infected cans Also That acts as a viral infection grows "The first time the term" virus "is used by Fred Cohen in 1984 in the United States. A computer virus called" virus "because it has some fundamental similarities with the virus in medical terms (biological viruses).
Computer viruses can be interpreted as an ordinary computer program. But a fundamental difference with other programs, namely a virus designed to infect other programs, convert, manipulate and even destroying it. There is to be noted here, the virus will infect only if a trigger program or programs that have been infected had been executed, where it differs with the "worm". This paper will not discuss the worm because the later will divert us from the discussion of this virus.
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