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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:

FeatureValue
TypeArithmetic
Functions4
Keys17
Precision8
LogicAlgebraic
Display typeLED
Length140mm
Width83mm
Power SourcePP3 9V
Year introduced1974

Replacements:

If you have a Century Mark IV that is no longer working, you can first try replacing the PP3 9V battery. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements:

See other calculators by Century