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3h 9min, jan 1, 1884 y - DORR FELT

Description:

Desarrolló su comptómetro, el cual fue la primera calculadora que se operaba con sólo presionar teclas en vez de, por ejemplo, deslizar ruedas.

Added to timeline:

HISTORIA DE LA INFORMÁTICA

ByBryan Jiménez
2 Oct 2017

Date:

3h 9min, jan 1, 1884 y
Now
~ 140 years ago

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