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computer, Charles Babbage
The first mechanical computer was created in 1822 by Charles Babbage. -
telegraph, Samuel Morse
in 1832 The first telegraphic model developed by Morse appeared. Morse's apparatus, which issued the first public telegram in 1844 -
Telephone, Alexander Graham Bell
In 1876 Alexander Graham Bell invented the telephone but This past March 7 marks the 145th anniversary of Alexander Graham Bell patenting the telephone in 1876, referred to as a device that transmits sounds through a cable through electrical signals. -
radio, Guillermo Marconi
In 1910 El primer aparato de radio de la historia fue la radio galena, inventada en 1910 por los estadounidenses Henry Dunwoody y Greenleaf Whittier Picard. -
television
In 1923 The first marketable television reception apparatus was created in 1926 and was the work of the Scotsman Baird. It consisted of a mechanical device -
tablet, Alan Kay
If we want to talk about the first tablet, we have to go back to 1968, the year in which Alan Kay surprised us with a conceptual design that we can consider the common "grandfather" of all electronic tablets. -
mobile phone, Martin Cooper
in 1984 Martin Cooper The first telephone call was made in 1973 in New York, by the engineer Martin Cooper, known as the father of the mobile phone.