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:

Feature Value
Type: Programmable
Functions: 62
Keys: 40
Precision: 8
Logic: Algebraic
Display type: LED
Length: 145mm
Width: 80mm
Thickness: 33mm
Power Consumption: 1.000W
Power Source: Sealed battery pack
Country: Italy
Year introduced: 1977
YearDiscontinued: 1981

See other calculators by Texas Instruments