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Casio fx-78

The Casio fx-78 is a scientific calculator with 11 digits precision and algebraic logic. It has 37 keys, and an LCD (liquid crystal) display. The power source is 389 mercury cell. The calculator was manufactured in Japan.

Facts at a glance:

FeatureValue
TypeScientific
Keys37
Precision11
LogicAlgebraic
Display typeLCD
Length91mm
Width54mm
Thickness6mm
Weight40g
Power Source389 mercury cell
CountryJapan
Year introduced1980

Replacements:

If you have a Casio fx-78 that is no longer working, you can first try replacing the 389 mercury cell battery. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement:

See other calculators by Casio