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Commodore 784D

The Commodore 784D 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. The calculator was manufactured in UK. Note: Available in black or cream.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions4
Keys17
Precision8
LogicAlgebraic
Display typeLED
Length137mm
Width64mm
Thickness23mm
Weight84g
Power SourcePP3 9V
CountryUK
Year introduced1975
Year discontinued1975

Replacements:

If you have a Commodore 784D 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