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Computer Charles Babbage
Electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data. -
Telegraph Joseph Henry
Device that uses electrical signals for the transmission of encrypted text messages. -
Telephone Alexander Graham
Device that transmit sounds through a cable through electrical signals. People use it to communicate with each other. -
Radio Guglielmo Marconi
Means of communication that is based on the sending of audio signals through radio waves -
Television John Logie
Electrical device that transmits a signal at a distance with image and sound. -
Tablet Alan Kay
Mobile computing device in which the touch screen occupies almost its entire size and in which there is no physical keyboard. -
Mobile phone Martin Cooper
Connection service to the public telephone network through a wireless network, in which users have the possibility of originating and receiving telephone calls.