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Texas Instruments TI-21

The Texas Instruments TI-21 is a scientific calculator with 8 digits precision and algebraic logic. It has 25 functions, 40 keys and an LCD (liquid crystal) display. The power source is 2xAA batteries. The calculator was manufactured in Taiwan.

Facts at a glance:

Type Scientific
Functions 25
Keys 40
Precision 8
Logic Algebraic
Display type LCD
Display size
Length 155 mm
Width 76 mm
Thickness 18 mm
Weight unknown g
Power Source 2xAA
Country Taiwan
Original price unknown
Est. current value unknown
Year introduced 1982
Year discontinued 1982

See other calculators manufactured by Texas Instruments.