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NATIONAL SEMICONDUCTOR: 831
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Product number (P/N): 831,
Keywords/Tags: 831
Date of intro: ~1974,
Display: Type = Display (LED) (List),
Number of keys: 20, #Key-White: 20,
Miscellaneous switch: [(Blank)-ON(ArrowRight)],
Classification: / Pocket,
Featuring: Procent, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip,
Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),

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Created: 16-dec-2016, Manual-update: 14-mar-2020, Batch-update: 14-jan-2022             

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