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Telegraph-Samuel Morse
A system for transmitting messages from a distance along a wire, especially one, vreating signals by making and breaking an electrical connection -
Computer-Charles Babbage
It is an electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program. -
Telephone-Antonio Meucci
It is a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals. -
Radio-Gulielmo Marconi
It is the transmittion and reception of electromagnetic waves of radio frequency especially those carrying sound messages -
Television-Philo Taylor Farnsworth
It is a telecommunication medium used for transmitting moving images in monochrome (black and white), or in color, and in two or three dimensions and sound. Television is a mass medium for advertising, entertainment, news, and sports. -
Mobile-Martin Cooper
It is a telephone with access to a cellular radio system so it can be used over a wide area, without a physical connection to a network. -
Tablet-Bill Gates
It is a portable computer that uses a touchscreen as its primary input device.
