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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
Communication system that allows the transmission of information by means of electrical impulses and using a pre-established code of signs. -
Telephone Alexander Graham Bell
Communication system that transmits voice and sound over long distances by electrical or electromagnetic means. -
Radio Guglielmo Marconi
transmission and detection of communication signals consisting of electromagnetic waves -
Television John Logie Baird
System of transmission of images and sounds at a distance by means of Hertzian waves. -
Tablet Alan Kay
A tablet is a wireless, portable personal computer with a touchscreen interface. -
Mobile phone Martin Cooper
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.