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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. -
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: Alexander Graham Bell
A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly. -
RADIO: Guglielmo Marconi
The transmission and reception of electromagnetic waves of radio frequency, especially those carrying sound messages. -
TELEVISION: Philo Taylor Farnsworth
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. -
MOBILE PHONE: Martin Cooper
A telephone with access to a celular radio system so it can be used over a wide area, without a physical connection to a network. -
TABLET: Bill Gates
A small portable computer that accepts input directly on to its screen rather than via a keyboard or mouse
