Derived - The existence of information technology companies specializing in computer security is not surprising. Right now there are more than 70,000 known computer viruses. Any virus prevention program needs and always needs to be kept up to date.
History of computer virus contracted by a record according to Daniel Tynan of PC World started tahun1982. When it spread through Apple II floppy disks and named for Elk Cloner. On the monitor screen will be displayed the text ends with the words, "Yes-it's Cloner!"
Himself used the term virus started in 1983 by a student of the University of Southern California (USC) named Fred Cohen. Definition is a computer program that can replicate and can destroy the program.
The first virus to infect IBM type computer called Brain. Appeared in 1986 and stored over 360KB floppy disks. The text file contained in it also contains the name of its creator two Pakistani brothers, Basit and Amjad Farooq Alvi. An experimental virus accidentally escaped from a laboratory in Israel. The virus was named Jerusalem and attacked on Friday the 13th. The entire program affected on that day will be erased.
While the first worm, a virus but can not replicate, which spread through the Internet, appeared in 1988. Created by S1 student Robert Morris Jr, worms causing losses of between 10 hingga100 million dollars in 6000 Unix systems.
Until the early 90s the number of known virus reached virus 300.Baru in 1992 that got the attention of the mass media named Michelangelo. Created to operate on March 6 (the birthday of the famous mural painters of Italy) this virus successfully infects 5,000 to 10,000 computers.
In addition in the boot sector virus that emerged in 1987 called Stoned which does not break anything, then came the various hoax virus that swept the world. Hoax viral over the Internet that it did not harm is Good Time which reportedly spread via the internet in 1994. Since it is often such cases occur Good Time.
1995 to 1997 new viruses appear equally attacking computer-based Apple Macintosh or IBM-Windows. In the mid 90s up to 10,000 known viruses. And the beginning of the new millennium has reached 70,000. We're still new at the starting point, the opinion of experts of this field