28 fev 1890 ano - the punch card was invented

Descrição:

Hewman Hollerith and Semen Korsakvo invented the punch card. the punch card was made to be used to contain digital information represented by the presence or absence of holes in predefined position. it cost $ 30.300 for the standard program of a punch card

Adicionado na linha do tempo:

Data:

Imagens: