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Censimento Americano, Schede Perforate e Macchina di Analisi (mar 25, 1880 – mar 25, 1887)

Description:

Hollerith inventò una macchina di analisi a schede perforate per un censimento in America (iniziato nel 1880)

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ByFrancesca Previtali
20 Nov 2017
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Date:

mar 25, 1880
mar 25, 1887
~ 7 years
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