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3 фев 1962 г. - DIGITAL COMMUNICATIONS

Описание:

The birth of high-speed digital communications. The data transmission service is offered commercially; broadband channels for digital signals; PCM is used for TV and voice transmission.

Добавлено на ленту времени:

Change in telecommunications

ByPerez Esteban
13 окт 2017
1
0
686

Дата:

3 фев 1962 г.
Сейчас
~ 63 г назад
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