< character > /pet'skee/ PET ASCII . The variation (many would say perversion) of the ASCII character set used by the Commodore Business Machines ' PET series of personal computer s and the later Commodore 64 , Commodore 16 , and Commodore 128 computers. The PETSCII set used left-arrow and up-arrow (as in old-style ASCII) instead of underscore and caret, placed the unshifted alphabet at positions 65--90, put the shifted alphabet at positions 193--218, and added graphic characters .
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(1995-10-29)