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MECHANICAL CALCULATING MACHINE OF JEWNO JACOBSON

Mechanical summing 9-digit machine was made in the town of Nesvizh Minsk Voivodeship within Polish-Lithuanian Commonwealth (now – town of Nesvizh, Minsk Region of Byelorussia) not later than 1770. Author of the machine – Jewno Jacobson, clockmaker and mechanic at the court of Mikhail Kazimir Radzivill nicknamed “Rybonka”.

Jacobson’s calculating machine is the unique and the one monument of the 18th century computing technique in the museums of Russia.

Действие и описание счетной машины подробно изложено в работе: И.А. Апокин, Л.Е. Майстров «Развитие вычислительных машин», М., «Наука», 1974.

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