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4 janv. 500 av. J.-C. - Abacus (counting frame) Counting tool that consists of beads or disks that can be moved up/down to assist in counting or keeping track of data

Ajouté au bande de temps:

History of computer Project

ByEmily DeVore
20 oct. 2017

Date:

4 janv. 500 av. J.-C.
Maintenaint
~ Il y a 2526 ans

Les images:

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