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The first electrical equipment for telegraphic transmission was invented by the American Samuel F. B. Morse in 1836, and the following year by the English physicist Charles Wheatstone in collaboration with the engineer Sir William F. Cooke. -
In 1876 Alexander Graham Bell created the telephone referred to as a device that transmitted sounds through a cable through electrical signals. -
The first mechanical computer or automatic computing engine concept. In 1822, Charles Babbage conceptualized and began developing the difference engine. -
in 1884 the first mobile was created but
The first telephone call was made in 1973 in New York, by the engineer Martin Cooper, known as the father of the mobile phone. -
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Although the discovery of radio is not without controversy, on May 14, 1897, the Italian electrical engineer and Nobel Prize winner Guillermo Marconi made the first radio transmission in history. -
Television was invented by John Logie Baird in 1923 in the city of Hastings, England and the first television image was broadcast by Baird in 1926 -
The American engineer Alan Kay was the first to propose something very similar to a tablet in 1968.