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Telegraph
David Alter creator.
Communication system that allows the transmission of information by means of electrical impulses and using a pre-established code of signs -
Telephone
Antonio Meucci creator.
Communication system that transmits voice and sound over long distances by electrical or electromagnetic means -
Radio
Guillermo Marconi creator. It is an electronic device that allows the recovery of voice signals or of any other type, transmitted by a radio transmitter using electromagnetic waves -
Television
John Logie Baird creator.
System for the transmission of images and sounds at a distance by means of Hertzian waves -
Computer
Konrad Zuse creator.
Electronic machine capable of storing information and processing it automatically through mathematical and logical operations controlled by computer programs -
Tablet
Alan Kay creator.
A tablet, in many places also called by the anglicized tablet, is a portable electronic device larger than a smartphone -
Mobile phone
Martin Cooper creator.
A mobile phone or cell phone is a portable phone that can make or receive calls through a radio frequency carrier, while the user is moving within a telephone service area
