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Computer by Charles Babbage
The computer is a programmable digital electronic machine that executes a series of commands to process input data into information that is then sent to output units. -
Telegraph by Samuel Morse
Telegraph is an apparatus or device that uses electrical signals for the transmission of coded text messages, such as Morse code, over wired lines or radio communications. -
Telephone by Alexander Graham Bell
The telephone is a telecommunication device designed to transmit acoustic signals over a distance by means of electrical signals. -
Radio by Nicola Tesla
Radio is a means of communication based on sending audio signals via radio waves. -
Television by John Logie Baird
It is an electronic device intended for the reception and reproduction of television signals. It usually consists of a screen and knobs or controls. -
Tablet by Alan Kay
It is a portable electronic device larger than a smartphone. -
Mobile phone by Martin Cooper
It is a device with which you can communicate with anyone wherever you are.