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1 dic 2401 año aC - First evidence of computation:The abacus

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The abacus was first know recorded form of an "automatic computer" and was believed to have been made in Babylon.The abacus generally features a table or tablet with beaded
strings. It was in use in china and japan until 1990 then it was replaced by calculators.

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fecha:

1 dic 2401 año aC
Ahora mismo
~ 4430 years ago