A backward glance. Arriving at the punched-card system.

Herman Hollerith's punched-card machine for the US Census office consisted of: a bank of counters for tabulating results; a hand-operated reader that pushed wire contacts through the holes in the card into pools of mercury, completing an electrical circuit; and a sorting box with bins for holdi...

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Bibliografiska uppgifter
I publikationen:IEEE spectrum 37, 2 (2000).
Materialtyp: Artikel
Språk:English
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