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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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11 abr 1970 ano - First battery powered, hand-held, electronic calculator.

Descrição:

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.

Adicionado na linha do tempo:

The Calculator

ByMarshall
13 set 2017
0
0
679

Data:

11 abr 1970 ano
Agora
~ 55 years ago
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