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9 dic 1499 anni - Счёты

Descrizione:

Простое механическое устройство для выполнения арифметических расчётов

Aggiunto al nastro di tempo:

История развития вычислительной техники

ByЯна Алексеенко

5 set 2017

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Data:

9 dic 1499 anni

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~ 526 years ago

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