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Texas Instruments TI-51-III

Texas Instruments TI-51-III
Image: Mark Bollman, used with permission

The Texas Instruments TI-51-III is a programmable calculator with 8 digits precision and algebraic logic. It has 62 functions, 40 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is Sealed battery pack. The calculator was manufactured in Italy.

Facts at a glance:

FeatureValue
TypeProgrammable
Functions62
Keys40
Precision8
LogicAlgebraic
Display typeLED
Length145mm
Width80mm
Thickness33mm
Power Consumption1.000000W
Power SourceSealed battery pack
CountryItaly
Year introduced1977
Year discontinued1981

Replacements:

If you have a Texas Instruments TI-51-III that is no longer working, you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements:

See other calculators by Texas Instruments