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Telegraph-Samuel Morse
A system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection. -
Telephone-Antonio Meucci
A system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals. -
Radio-Guglielmo Marconi
An apparatus for receiving or transmitting radio broadcasts. -
Television-John Logie Bard
The transmission of programming, in the form or still or moving images, via radio waves, cable wires, satellite or wireless network to a receiver or other screen -
Computer-Konrad Zuse
A programmable electronic device designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations. -
Tablet-Alan Kay
A thin slab or one of a set of portable sheets used for writing -
Mobile phone-Martin Cooper
Any wireless telephone that operates over a relatively large area, as a cell phone or PCS phone.
