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Samuel Morse invented the telegraph, a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.
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Graham Bell invented the telefone, Communication system that transmits voice and sound over long distances by electrical or electromagnetic means
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Guillermo Marconi invented the radio, straight line joining the center of a circle with any point on the edge of the circumference.
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John Logie Baird invented the television, System for the transmission of images and sounds at a distance by means of Hertzian waves.
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Konrad Zuse invent the computer, Máquina electrónica capaz de almacenar información y tratarla automáticamente mediante operaciones matemáticas y lógicas controladas por programas informáticos
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Alan Kay invented the tablet, a tablet is a type of laptop, normal larger than a smartphone, that has a touch screen with which you can interact without the need for a keyboard or mouse
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Martin Cooper invented the movile phone,
is a portable telephone that can make or receive calls through a radio frequency carrier, while the user is moving within a telephone service area
