File:National Semiconductor MM5703 Control ROM (extension) 3.jpg

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English: 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. The chipset was marketed as a general purpose serieal data microcomputer system. The chipset was introduced in late 1971.
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current23:30, 25 January 2016Thumbnail for version as of 23:30, 25 January 20161,100 × 1,250 (378 KB)Mister rf (talk | contribs)User created page with UploadWizard

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