The Andy Warhol Museum in Pittsburgh said that the artist had a contract with Commodore International to produce images on one of its Amiga home computers.
The old images were recently extracted from disks by members of Pittsburgh's Carnegie Mellon University Computer Club in collaboration with museum staff.
The images vary from doodles and camera shots of a desktop to versions of Warhol's classic images of a banana, Marilyn Monroe and a Campbell's soup can, the museum said.
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