Elk Cloner

Elk Cloner was one of the virst computer viruses and the first wide-spread computer virus. It spread on Apple II computer systems. It printed this poem on infected systems:

Elk Cloner: The program with a personality
It will get on all your disks
It will infiltrate your chips
Yes, it's Cloner!
It will stick to you like glue
It will modify RAM too
Send in the Cloner!