/pet' skee/ PETASCII. 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}. [Jargon File] (1995-10-29)
