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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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11 apr 1970 anni - First battery powered, hand-held, electronic calculator.

Descrizione:

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.

Aggiunto al nastro di tempo:

The Calculator

ByMarshall
13 set 2017
0
0
683

Data:

11 apr 1970 anni
Adesso
~ 55 years ago
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