AKA: PERSONAL M-1, ELECTRONIC CALCULATOR, AKA (Label): personal M-1, H-813B, Product number (P/N): H813B (H-813B),
Keywords/Tags: H813B (H-813B)
Date of intro: ~1976, Origin: Japan (List), Dimensions: 124x75x22mm, Weight: 137g,
Power: 3V: (AA x2) + Adaptor, Adaptor: CASIO_adaptors: AD2S,
Display: Type = Display (VFD) (List), Digits = 8,
Number of keys: 21, #Key-Black: 4, #Key-Orange: 1, #Key-White: 16,
Classification: / Pocket,
Featuring: Procent, Square root, Logic-technology: VLSI (Very Large Scale Integration), calculator-on-a-Chip, Memories: 1,
Related with: CASIO_docu: (Instr.) H813B; CASIO_docu: M4000938L (Cat.); CASIO_docu: (Cat.) 198102 (Japanese); CASIO_parts: (Box) H813B,
Main Components: NEC: D1877C,
Resemblance with: (Resemblance 096A),
Known Serial-numbers: 0D207A | 2K102A | 4162206 | 4173658 | 4447035 (List of all S/Ns from CASIO)
Collector value: 7/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Internet: Link-1: VINTAGE TECHNOLOGY, Link-2: MY CALCULATORS DATABASE, Link-3: LEDUDU