In the 1970s, Commodore was one of many electronics companies selling calculators designed around Dallas-based Texas Instruments (TI) chips. Original prototype PET, in the storage warehouse of the Computer History Museum, Mountain View, California It was backronymed to Personal Electronic Transactor. The name was suggested by Andre Souson after he saw the Pet Rock in Los Gatos, and stated they were going to make the 'pet computer'. The systems were a top seller in the Canadian and United States education markets, as well as for business use in Europe.

The PET design underwent a series of updates: more memory, better keyboard, larger screen, and other modifications. Byte referred to the three machines collectively as the '1977 trinity'. A series of problems delayed production versions until December 1977, by which time the TRS-80 and Apple II had already begun deliveries. A single all-in-one case combines a MOS Technology 6502 microprocessor, Commodore BASIC in read-only memory, keyboard, computer monitor, and, in early models, a cassette deck.ĭevelopment of the system began in 1976 and a prototype was demonstrated at the January 1977 Consumer Electronics Show.

The Commodore PET is a line of personal computers produced starting in 1977 by Commodore International. US$795 (equivalent to $3,395 in 2020) Ĭassette tape, 5.25-inch floppy, 8-inch floppy, hard disk

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