calculator.org

the calculator home page

Commodore US4 (US4)

The Commodore US4 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 20 keys, and a VFD (vacuum fluorescent) display. The power source is 4xAA. The calculator was manufactured in Japan.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions5
Keys20
Precision8
LogicAlgebraic
Display typeVFD
Length139mm
Width85mm
Thickness35mm
Power Source4xAA
CountryJapan
Year introduced1972
Year discontinued1973

Replacements:

If you have a Commodore US4 that is no longer working, you can first try replacing the 4xAA batteries. 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 Commodore