/pet' Skee/ PETASCII. The variation (many would Say perverSion) of the ASCII character Set uSed by the Commodore BuSineSS MachineS' PETSerieS 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)