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

Описание:

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.

Добавлено на ленту времени:

The Calculator

ByMarshall

13 сен 2017

680

Дата:

11 апр 1970 г.

Сейчас

~ 55 г назад

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