AKA: MODEL 121-E, AKA (Label): 121-E, Product number (P/N): 121E (121-E),
Keywords/Tags: 121E (121-E)
Date of intro: 1973, Origin: Japan (List), Dimensions: 206x180x65mm, Weight: 1400g,
Power: AC,
Display: Type = Display (VFD tube) (List),
Number of keys: 21, #Key-Black: 5, #Key-Blue: 3, #Key-Orange: 2, #Key-White: 11,
Decimal switch: [6-4-3-2-1-0], Round switch: [F-5/4-CUT],
Classification: / Desktop with Display,
Featuring: Procent, Logic-technology: LSI (Large Scale Integration), calculator-chipset, Memories: 1,
Related with: CASIO_docu: (Instr.) 121E (version-1); CASIO_docu: (Broch.) 121E: Makes the percentages work...,
Resemblance with: (Resemblance 521B),
Serie-members: CASIO: 121E (version-1) (Without Square Root); CASIO: 121E (version-2) (With Square Root),
Known Serial-numbers: 4102016 (List of all S/Ns from CASIO)
Collector value: 8/10,
Internet: Link-1: THE NATIONAL MUSEUM OF AMERICAN HISTORY