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The telegraph is an apparatus or device that uses electrical signals to transmit coded text messages, such as Morse code, through wire lines or radio communications and it was invented by Samuel Morse in 1835
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It was invented in 1854 by the Italian inventor Antonio Meucci. He built it to connect his office with his bedroom so he could talk to his wife, who was immobilized in bed due to illness.
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Guillermo Marconi receives the patent for his tuning equipment in England in 1901. It is a transatlantic communication, without the use of cables of any kind, by radio waves.
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The engineer John Logie Baird invented television in 1926. TV, is a system for transmitting images and sounds at a distance by means of Hertzian waves.
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In 1941, Konrad Zuse was the first to build a working computer. Electronic machine capable of storing information and processing it automatically through mathematical and logical operations controlled by computer programs.
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On April 3, 1973, Martin Cooper, a Motorola manager, made the first call from a mobile phone of the DynaTAC 8000X project from a street in New York. A mobile phone or cell phone is a portable phone that can make or receive calls through a radio frequency carrier, while the user is moving within a telephone service area.
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In 2001 the then CEO of Microsoft, Bill Gates, introduced the Microsoft Tablet PC. A tablet, in many places also called by the anglicized tablet, is a portable electronic device larger than a smartphone or a PDA,