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Texas Instruments DataChron (TI-1790)

Texas Instruments DataChron
Image: Mark Bollman, used with permission

The Texas Instruments DataChron is an arithmetic calculator with 8 digits precision and algebraic logic. It has 7 functions, 31 keys, and one of the early LCD (liquid crystal) displays which incorporated a yellow filter. The power source is 2xLR44. The calculator was manufactured in Japan. Note: time

Facts at a glance:

FeatureValue
TypeArithmetic
Functions7
Keys31
Precision8
LogicAlgebraic
Display typeYLCD
Length135mm
Width68mm
Thickness9mm
Power Source2xLR44
CountryJapan
Year introduced1978
Year discontinued1978

Replacements:

If you have a Texas Instruments DataChron that is no longer working, you can first try replacing the 2xLR44 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 Texas Instruments