Columbia Columbia

The Columbia Columbia is an arithmetic calculator with algebraic logic. It has 5 functions, 18 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 6xAA.

Facts at a glance:

Feature Value
Type: Arithmetic
Functions: 5
Keys: 18
Logic: Algebraic
Display type: LED
Length: 133mm
Width: 76mm
Thickness: 38mm
Power Source: 6xAA
Year introduced: 1972

See other calculators by Columbia