True Communication Highway Documentary|Architecture & Uses|The Security Challenges|A brief history

  • 3 years ago
True Communication Highway Documentary|Architecture & Uses|The Security Challenges|A brief history

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The first submarine cable in the world was laid in the English Channel in 1851. It was a revolutionary event that communication beyond the ocean became possible, although the communication method was telegraph. ... In 1876, the telephone was invented, and a communication method was expanded dramatically.

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