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Commodore 774D

Commodore 774D
Image: Joe Haupt, CC BY-SA 2.0

The Commodore 774D is an arithmetic calculator with 7 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. The calculator was manufactured in UK; USA. Note: Same processor as 776M model. Available with a commodore label in black/white or white/black.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions4
Keys17
Precision7
LogicAlgebraic
Display typeLED
Length137mm
Width64mm
Thickness23mm
Power SourcePP3 9V
CountryUK; USA
Year introduced1974
Year discontinued1975

Replacements:

If you have a Commodore 774D 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 Commodore