Commodore 9D-31

The Commodore 9D-31 is an arithmetic calculator with algebraic logic. It has 13 functions, 31 keys, and a VFD (vacuum fluorescent) display. The power source is 2xAA.

Facts at a glance:

Feature Value
Type: Arithmetic
Functions: 13
Keys: 31
Logic: Algebraic
Display type: VFD
Length: 140mm
Width: 76mm
Power Source: 2xAA
Year introduced: 1975

See other calculators by Commodore