AKA: Electronic Calculator, Product number (P/N): 121,
Keywords/Tags: 121 | Electronic Calculator
Date of intro: 1969, Origin: Japan (List),
Power: AC,
Display: Type = Display (Nixie) (List), Brand = HITACHI: CD71, Digits = 12, Extra Display features: Type = Display (Neon bulb) (List), Quantity = 1,
Keyboard: Reed-switch, Number of keys: 22, #Key-Black: 10, #Key-Red: 1, #Key-White: 11,
Classification: / Desktop with Display,
Featuring: Logic-technology: SSI (Small Scale Integration) / JMOS (Japanese MOS),
Related with: CASIO_docu: (Broch.) *: A brief introduction... (1972),
Main Components: CASIO: 12D2E; CASIO: 12D3F; CASIO: 12D12D; CASIO: 12D43A; CASIO: 15BEC; CASIO: SGF7,
Original Equipment Manufacturer : CASIO: 121 (List of all Export-OEM-models from CASIO), Resemblance with: COMMODORE: 1121,
Known Serial-numbers: 205324 | B207261 (List of all S/Ns from CASIO)
Collector value: 9/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Info: First CASIO series to integrate MOS IC's.
Mid version of the 120 and 161 series.