Imperial 91S

The Imperial 91S is an arithmetic calculator with 8 digits precision and algebraic logic. It has 9 functions, 27 keys, and a VFD (vacuum fluorescent) display. The power source is 4xAAA.

Facts at a glance:

Feature Value
Type: Arithmetic
Functions: 9
Keys: 27
Precision: 8
Logic: Algebraic
Display type: VFD
Length: 120mm
Width: 73mm
Thickness: 20mm
Weight: 116g
Power Source: 4xAAA
Year introduced: 1976
YearDiscontinued: 1976

See other calculators by Imperial