Columbia Scientific

Columbia Scientific
Image: wass.net used with permission
The Columbia Scientific is an arithmetic calculator with algebraic logic. It has an LED (light-emitting diode) display, typical of calculators of this era. The power source is Sealed battery pack.

Facts at a glance:

Feature Value
Type: Arithmetic
Logic: Algebraic
Display type: LED
Length: 140mm
Width: 76mm
Power Source: Sealed battery pack
Year introduced: 1974

See other calculators by Columbia