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1 jan 1887 ano - Comptómetro
Descrição:
Dorr Felt desarrolló su comptómetro, el cual fue la primera calculadora que se operaba con sólo presionar teclas en vez de, por ejemplo, deslizar ruedas.
Adicionado na linha do tempo:
Predecesores del ordenador
By
Antonio
26 nov 2018
0
0
308
Data:
1 jan 1887 ano
Agora
~ 137 years ago
Imagens:
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