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1 gen 1890 anni - 1890 - máquinas de tarjetas perforadas

Descrizione:

•Se tabula el censo estadounidense empleando las máquinas de tarjetas perforadas de Herman Hollerith.

Aggiunto al nastro di tempo:

LIBRO LOS INNOVADORES

ByJoan Sebastian

3 ott 2018

0

0

846

Data:

1 gen 1890 anni

Adesso

~ 135 years ago

Immagini:

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