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Computer, Charles Babbage
An electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program. -
Telephone, Graham Bell
A telephone is a device that transmits sounds at a distance using electrical signals. -
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
A system for converting visual images (with sound) into electrical signals, transmitting them by radio or other means, and displaying them electronically on a screen. -
Tablet, Alan Kay
It is a type of laptop, larger than a smartphone, integrated into a touch screen with which you interact primarily with your fingers, without the need for a physical keyboard or mouse. -
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. -
Telegraph, Samuel Morse
Is a system of sending messages over long distances, either by means of electricity or by radio signals.
