Computer virus celebrates 25th birthday

The first microcomputer virus to appear in the wild, i.e. outside the single computer or lab where it was created, is celebrating its 25th birthday.

'Elk Cloner' was created in 1982 and is credited to Richard Skrenta, a high-school student from Pittsburgh.
The virus was originally added to a game propagated between Apple II computers via floppy disk. The game was set to play normally 49 times, but to release the virus on the 50th time of starting the game.
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