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Telegraph-Samuel Morse
A system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection. -
Telephone- Graham Bell
A system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals. -
Radio-Guillermo Marconi
It is an electronic device that allows the recovery of voice signals or of any other type, transmitted by a radio transmitter by means of electromagnetic waves. -
Television- John Logie Baird
System for the transmission of images and sounds at a distance by means of Hertzian waves. -
Computer- Konrad Zuse
Electronic machine capable of storing information and processing it automatically through mathematical and logical operations controlled by computer programs. -
Mobile phone-Martin Cooper
It 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. -
Tablet-Alan Kay
It is a flat slab of stone, clay, or wood, used especially for an inscription.
