The first modem for data transmission over a telephone line is presented.
ATTENTION - Modems were already available before, but not generally and worldwide for the Internet:
A modem (short for modulator-demodulator) is a device that enables the exchange of digital signals between two digital devices over long distances. In 1966, the Bundespost introduced the first modems - communication between computers over the telephone network also began in Germany at 1,200 bit/s
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