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The modem is used in data transmission. When was it invented, and in which country?

  • A.1963, USA
  • B.1965, Germany
  • C.1950, USA
  • D.1950, Japan

Answer: C

Correct answer: 1950, USA

Modems were developed in the United States in the 1950s, for the SAGE air defence system, which needed to carry radar data over telephone lines.

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