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1 янв 1898 г. - Magnetic Recording

Описание:

Valdemar Poulsen invents the first magnetic recording using magnetized steel tapes.

Photo Source: www.computerhistory.org

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TV and Production History

27 сен 2017

0

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709

Дата:

1 янв 1898 г.

Сейчас

~ 127 г назад

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