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Telegraph - Samuel Finley Breese Morse
Is the long-distance transmission of textual messages where the sender uses symbolic codes. -
Telephone - Alexander Graham Bell
A system for transmiting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals. -
Radio - Guillermo Marconi
An electrical device that recives radiotelegraphy or radiotelephony waves and transforms them into signals or sounds -
Television - John Logie Baird
Is a telecommunication medium used for transmitting moving images in monochrome or in color and in two or three dimensions and sound. -
Computer - Konrad Zuse
Electronic machine able to store information and processing it automatically through mathematical and logical operations controlled by computer programs. -
Tablet - Alan Kay
Portable electronic device with touch screen and multiple features. -
Mobile phone - Martin Cooper
Is a portable telephone that can make or receive calls through a radio frequency carrier, while the user is moving within a telephone service area