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

Description:

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

Added to timeline:

computer hidtory

ByCytuser Jayfu003
29 Jan 2020

Date:

jan 1, 1930
jan 1, 1960
~ 30 years
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