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1 janv. 500 av. J.-C. - Abacus

Description:

What: A manual aid to calculating that consists of beads or disks that can be moved up and down on a series of sticks or strings within a usually wooden frame.
How: You move the beads to calculate basic math

Ajouté au bande de temps:

Investigating The History Of The Computer Part 1

ByTimothy McKay
11 oct. 2017
0
0
561

Date:

1 janv. 500 av. J.-C.
Maintenaint
~ Il y a 2527 ans

Les images:

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