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1 juill. 1971 - Also early 1971 - The first true pocket calculator, the LE-120A "HANDY", is released by Busicom. It is also the first calculator using an LED display, a single IC, and replaceable batteries.

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Calculator history

ByCasey
4 oct. 2017
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Date:

1 juill. 1971
Maintenaint
~ Il y a 54 ans
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