CASIO COLLEGE fx-100A

Description

Brand: CASIO
Model: COLLEGE fx-100A
Type: Scientific calculator
Picture: CASIO fx-100A
Batteries: AA x 2
Lifetime: Introduced: 1986
Terminated: unknown
Notes: The CASIO is the first revision of the CASIO fx-100 mostly reshuffling the positions of operations but also adding a few such as the x! factorial, and the nPr and nCr functions for permutations and combinations.

It also adds the MODE key to easily select modes, as indicated in a table under the LCD. Also new is that the primary functions of keys are now printed on the keys themselves.

Like its predecessor it has a 10-digit mantissa.

This calculator (as do many other CASIO scientific calculators) uses one and the same key for both the constant π as well as exponents. This works as follows. When you first enter digits, the EXP key will enable you to enter the exponent, otherwise it will enter the constant π.
Series: A newer version of the CASIO fx-100. Similar to the CASIO fx-82 series there is a collection of calculator in the fx-100 range. So far I’ve found mention of the following types:
  • CASIO fx-100
  • CASIO fx-100A (this one)
  • CASIO fx-100AU
  • CASIO fx-100B
  • CASIO fx-100C
  • CASIO fx-100D
  • CASIO fx-100MS
  • CASIO fx-100MS-2
  • CASIO fx-100S
  • CASIO fx-100V
  • CASIO fx-100W