Vintage Electronic Calculators:

Overview of Brands


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AKA: SCIENTIFIC CALCULATOR, fx-101, AKA (Label): fx-101, Product number (P/N): fx101 (fx-101),
Keywords/Tags: fx101 (fx-101) | SCIENTIFIC CALCULATOR
Date of intro: aug-1975, Origin: Japan (List), Dimensions: 158x94x33mm, Weight: 205g,
Power: 6V: (AA x4) + Adaptor, Adaptor: CASIO_adaptors: AD4145,
Display: Type = Display (VFD) (List), Digits = 10+1,
Number of keys: 37, #Key-Grey: 24, #Key-Orange: 2, #Key-White: 11,
Miscellaneous switch: [DEG-RAD],
Classification: / Pocket,
Featuring: Scientific functions, Square root, PI,
Related with: CASIO_docu: (Ad.) *: Heute muß... (C100P,CD813,CM607,FX20,FX101,P810); CASIO_docu: (Broch.) FX101: Super-competent 10-digit calculator...; CASIO_docu: (Ad.) *: Der Blitzgescheite... (CD813,FX20,FX101); CASIO_docu: (Ad.) *: Zwei Beispiele aus dem größten... (8S,FX101); CASIO_docu: (Broch.) *: Die Qualitätsrechner met großer... (fx20,fx101); CASIO_docu: (Ad.) *: Wenn Sie die Funktionen (FX17,FX101, FX201); CASIO_docu: (Broch.) *: (Japanese) version-1; CASIO_docu: (Cat.) 1976~ (Japanese); CASIO_docu: (Ad.) *: Zwei Beispiele aus dem größten... (FX101,H801); CASIO_docu: (Cat.) 19760526: From the world's leading manufacturer...,
Main Components: NEC: µPD975C; NEC: µPD979C,
Original Equipment Manufacturer : CASIO: FX101 (List of all Export-OEM-models from CASIO), Resemblance with: REMINGTON: SSR12,
Known Serial-numbers: 2254692 (List of all S/Ns from CASIO)
Initial Cost Price: 18500 JPY (€ 149,85), Collector value: 7.5/10,
Courtesy of: CALCUSEUM (Serge DEVIDTS),
Info: DUDEK Emil:
Here is a rather splendid ten digit scientific from 1975. it has the early CASIO baroque style of the period, shared by the older fx-10 and the briefcase models 103-mr & 803-mr with a square-jaw case and square edged buttons.
The function set is similar but less complete than the later fx-19, but this model has 10 digits. it also takes 4AA cells. The display is very good with a spare digit for minus and the gap between a ten digit mantissa and the two digit exponent.
Conceptually this is a throwback to the fx-10, but the function set is much improved and the calculation speed increased. The right most digit flickers whilst calculating like the fx-20 and the small zero digit has gone and exponents of up to +/-99 are allowed.
A switch for degrees or radians has appeared, but no sign yet of gradians or fractions.
Llike earlier models a 10^x button is not present, since x^y can be used for this, although conveniently this model has a x^2 button which doesn’t appear again until arc is replaced by an inv button on later models like the fx-39.
The calculation algorithms appear very similar to the fx-19 and improved from the fx-20, but interestingly cos stops at 1530, sin & tan at 1440 like the fx-20. later models all stop at 1440 until much later.



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Created: 04-feb-2007, Manual-update: 12-aug-2020, Batch-update: 24-jun-2022             

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