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4 янв 500 г. до нашей эры - 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
Добавлено на ленту времени:
History of computer Project
By
Emily DeVore
20 окт 2017
0
0
378
Дата:
4 янв 500 г. до нашей эры
Сейчас
~ 2526 г назад
Изображения:
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