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Computer-Charles Babbage
A Computer is a System made up of programs and electronic elements, which together allow the processing and ordering of information. The programs are known as Software and the electronic elements as Hardware. -
Telegraph-Samuel Morse
Is a communication system that allows the transmission of information by means of electrical impulses and the use of a predetermined signal code. -
Telephone -Antonio Meucci
A telephone is a device that makes it possible to transmit sounds at a distance by means of electrical signals. -
Television-John Logie Baird
Is a system of transmission of images and sounds at a distance by means of Hertzian waves. -
Radio-Nikola Tesla
The radio has the function of informing, educating and entertaining. ... The radio is equipped with a transmitter, and receives a signal from only that transmitter. The radio works by transmitting data using the corresponding waves, electrically driving data from one radio to another. -
Tablet-Alan Kay
A tablet is a type of laptop, usually larger than a smartphone, that has a touch screen with which you can interact without the need for a keyboard or mouse. -
Mobile phone-Martin Cooper
Mobile telephony or cellular telephony is a means of wireless communication through electromagnetic waves.