Century Mark IV

Century Mark IV
Image: Joe Haupt, CC BY-SA 2.0
The Century Mark IV is an arithmetic calculator with 8 digits precision and algebraic logic. It has 4 functions, 17 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V.

Facts at a glance:

Feature Value
Type: Arithmetic
Functions: 4
Keys: 17
Precision: 8
Logic: Algebraic
Display type: LED
Length: 140mm
Width: 83mm
Power Source: PP3 9V
Year introduced: 1974

See other calculators by Century