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Telegraph, Samuel Morse
The telegraph is a device used to communicate at a distance. It uses electricity to send coded messages through the wires. -
Computer, Charles Babbage
It is a machine that stores and automates information through computer programs specifically designed for this task. -
Telephone, Alexander Graham Bell
is an device that trasmit sound by a cable electical signs. -
Radio, Guillermo Marconi
It is a means of communication that is based on the sending of audio signals through radio waves. -
Television, John Logie Baird
It is a system for transmitting images and sound at a distance through Hertian waves. -
Tablet, Alan Kay
is a mobile computing device in which the touch screen occupies almost its entire size and in which there is no physical keyboard. -
Telephone movil, Martin Cooper
It is an electronic wireless device that allows access to the cellular or mobile telephone network. It is called cellular due to the repeater antennas that make up the network, each of which is a cell, although there are satellite mobile telephone networks.