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.
COMMENT RULES: Comments that are judged to be defamatory, abusive or in bad taste are not acceptable and contributors who consistently fall below certain criteria will be permanently blacklisted. The moderator will not enter into debate with individual contributors and the moderator’s decision is final. It is Belfast Telegraph policy to close comments on court cases, tribunals and active legal investigations. We may also close comments on articles which are being targeted for abuse. Problems with commenting? firstname.lastname@example.org