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apr 11, 1970 - First battery powered, hand-held, electronic calculator.

Description:

First calculator using just LSI (Large Scale Integration) chips, with ICs by Rockwell. The size & weight much reduced, calculator now portable.
First battery powered, hand-held calculator. Green fluorescent tube displays introduced.

Added to timeline:

13 Sep 2017
0
0
143
The Calculator

Date:

apr 11, 1970
Now
~ 48 years ago
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