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4 Jan 500 Jahr v. Chr. - 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
Zugefügt zum Band der Zeit:
History of computer Project
By
Emily DeVore
20 Okt 2017
0
0
383
Datum:
4 Jan 500 Jahr v. Chr.
Jetzt
~ 2526 years ago
Abbildungen:
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