DescriptionOlympia CD700 Desktop Calculator. 1971.Microprogrammable Arithmetic Processor System Devices (MAPS).jpg
English: Olympia CD700 Desktop Calculator is built with the microprocessor MM5700 from National Semiconductor. The National MAPS (Microprogrammable Arithmetic Processor System) or National MM570X was a bit-serial 4-bit microcontroller system made of 5 discrete chips designed by National Semiconductor.
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