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1 ene 1889 año - Punch card systems designed

Descripción:

Herman Hollerith designs a punch card system that calculates the 1880 census for the government.

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ByZi Heng Liang [STUDENT]

2 oct 2018

fecha:

1 ene 1889 año

Ahora mismo

~ 135 years ago

Fotos:

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