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Sinclair Executive Memory

Sinclair Executive Memory
Image: Wikimedia CC BY-SA 3.0

The Sinclair Executive Memory is an arithmetic calculator with 8 digits precision and algebraic logic. It has 4 functions, 18 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 3x mercury cell.

Facts at a glance:

FeatureValue
TypeArithmetic
Functions4
Keys18
Precision8
LogicAlgebraic
Display typeLED
Length138mm
Width56mm
Thickness9mm
Power Source3x mercury cell
Year introduced1973

Replacements:

If you have a Sinclair Executive Memory that is no longer working, you can first try replacing the 3x mercury cell 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 Sinclair