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1 Jan 500 Jahr v. Chr. - Abacus

Beschreibung:

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

Zugefügt zum Band der Zeit:

Investigating The History Of The Computer Part 1

ByTimothy McKay
11 Okt 2017
0
0
491

Datum:

1 Jan 500 Jahr v. Chr.
Jetzt
~ 2527 years ago

Abbildungen:

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