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jan 1, 1990 - The TI-81

Description:

The TI-81 is the first graphing calculator made by Texas Instruments. It was designed in 1990 for use in algebra and precalculus courses.

Added to timeline:

13 Sep 2017
0
0
147
The Calculator

Date:

jan 1, 1990
Now
~ 28 years ago

Images:

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