30 окт 1673 г. - The Stepped Reckoner
Описание:
An early calculator designed by Gottfried Wilhelm von Leibniz. While it was originally meant to perform simple calculations such as square roots and multiplication, it often got jammed and become unable to use.
https://www.britannica.com/technology/Step-Reckoner
Добавлено на ленту времени:
History of Computers Timeline
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