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Casio 101 Desktop Calculator


Image Courtesy Gerhard Päselt

Early (1966) transistorized desktop Nixie-display calculator from Casio. 10-digit, four-function, fixed or floating decimal. Accumulating memory register. Follow-on to Casio 001 and Root 001 calculators. Knobs on front of the calculator are for setting decimal point location for memory register, and entry of a seven digit constant value.
Casio 101 Specifications

Manufacturer: Casio Computer Co., Ltd.
Model Number: 101
Manufactured In: Japan
Date of Introduction: July, 1966
Display Technology: Nixie Tube, 10 Digits
Logic Technology: Discrete Diode-Transistor Logic
Digits of Capacity: 10
Decimal Modes: Floating for calculation. Fixed for memory register.
Math Functions: Four Function
Memories: One accumulator-style memory register
Performance: Addition/Subtraction: 6ms; Multiplication/Division: 350ms (Mfg. Claim)
Size: 14 1/2" wide, 18 1/8" deep, 8 1/4" high
Weight: 21 pounds
Notes: Seven digit constant value entered on front panel rotary switches
Summation mode for summing of products/quotients into memory register
Double-precision (20 digit) capacity for multiplication
First Casio-made electronic calculator exported outside of Japan

Copyright 1997-2008, Rick Bensene.