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Computer-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
Is a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection. -
Telephone-Graham Bell
Is a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals. -
Radio-Guglielmo Marconi
An electrical device that receives radiotelegraphy or radiotelephone waves and transforms them into sounds or signals. -
Television-John Logie Bard
System for the transmission of images and sounds at a distance by means of Hertzian waves. -
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. -
Tablet-Alan Kay
It is a type of laptop, larger than a smartphone or a PDA, integrated into a touch screen with which you interact primarily with your fingers, without the need for a physical keyboard or mouse.
