History Of Computer Viruses To 1989

History Of Computer Viruses To 1989



History of​ Computer Viruses to​ 1989
Science fiction writer David Gerrold wrote When H.A.R.L.I.E .​
Was One and published it​ in​ 1972 .​
In it,​ a​ computer program called VIRUS spreads from computer to​ computer,​ before it​ is​ finally killed by another program,​ appropriately called VACCINE .​
Just like communication satellites,​ moon landings,​ and waterbeds,​ science fiction predicted the​ future.
The first program to​ actually spread from one computer to​ another appeared around the​ same time .​
the​ Creeper virus infected a​ system across the​ Arpanet,​ the​ network of​ computers that eventually became the​ Internet we​ know today .​
Interestingly enough,​ the​ Reaper program designed to​ kill the​ Creeper virus was also a​ virus.
The first wide-scale virus infection was Elk Cloner on​ the​ Apple II computer system in​ 1981 .​
Since the​ Apple II kept it’s operating system on​ floppy disk,​ it​ was very easy to​ infect the​ system,​ and a​ surprisingly large number of​ viruses were written for Apple computers.
Five years later,​ the​ first PC viruses began to​ appear,​ starting with the​ Pakistani Brain .​
It was written by a​ pair of​ brothers in​ Pakistan.
1987 saw the​ first boot-sector viruses,​ such as​ Yale,​ Ping Pong,​ and Stoned .​
Boot sector viruses infect a​ computer if​ an​ infected disk is​ left in​ the​ drive with the​ power off .​
the​ Jerusalem virus also appeared that same year,​ and was one of​ the​ first viruses to​ have a​ destructive payload—if the​ virus was running on​ Friday the​ 13th,​ it​ would ruin all executable files on​ the​ computer.
Robert Tappan Morris made computer history in​ 1988 .​
His computer worm was one of​ the​ first to​ exploit Buffer Overrun errors,​ and spread rapidly across the​ network .​
It would run multiple times on​ infected systems,​ eventually crowding out anything else on​ that system .​
the​ worm brought the​ Internet to​ it’s knees until it​ was found and removed.




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