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jan 14, 1700 - Рабдологический абак
Description:
Шарль Перро (брат Шарля Перро) изобрел суммирующую машину, в которой взамен зубчатых колес используются зубчатые рейки. Машина получила название "Рабдологический абак".
Added to timeline:
Информатика в датах
By
Инна
9 Oct 2017
0
0
1121
Date:
jan 14, 1700
Now
~ 325 years ago
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