Seven Sylvania vacuum tubes on top (one missing); two long prongs on end. Handle is rusted with yellow band. Burroughs Electrodata Module, 1958 Electrodata Corporation, based in Pasadena, California, was taken over by Burroughs in June of 1956, an acquisition which gave Burroughs a good start in the computer industry. The 205 was a magnetic drum based machine (4K of memory) designed in vacuum tube technology which was considered of "medium scale" power. It came in various configurations--the base model offering simple paper- tape I/O--however many installations connected IBM peripherals to the system such as printers, magnetic tape drives, card readers and punches. The 205 sold particularly well in engineering circles and many of the nation's top industrial concerns had at least one for scientific work. Installation was a big job: a crane was almost always required as was an air conditioning system (22 tons of refrigeration), special flooring, and some 30-60kW of power, depending on the number of peripherals. The module shown here (Carol?) formed part of the system's arithmetic and control unit.