// todo need optimize like in event.jsp. Add indexing or not indexing this page. desktop calculators (1 jan 1930 ano – 1 jan 1960 ano) (Linha do tempo)
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desktop calculators (1 jan 1930 ano – 1 jan 1960 ano)

Descrição:

From the 1930’s to the 1960’s “desktop calculators” were
developed, making the transition from mechanical to electronic.

Adicionado na linha do tempo:

computer hidtory

ByCytuser Jayfu003
29 jan 2020

Data:

1 jan 1930 ano
1 jan 1960 ano
~ 30 years
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