AKA: PERSONAL M-1, ELECTRONIC CALCUALTOR, AKA (Label): personal M-1, H-813, Product number (P/N): H813 (H-813),
Keywords/Tags: H813 (H-813) | PERSONAL | M1
Date of intro: 1975, Origin: Japan (List), Dimensions: 124x75x22mm, Weight: 137g,
Power: 3V: (AA x2) + Adaptor, Adaptor: CASIO_adaptors: AD2S,
Display: Type = Display (VFD) (List),
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: (Docu_Catalogs): ARGOS: 1978; (Docu_Catalogs): ARGOS: 1978 Autumn,
Main Components: NEC: µPD577C,
Resemblance with: (Clones 096),
Known Serial-numbers: 0381303 | 0771570 | 0778585 | 4375874 (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