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Telegraph/David Alter
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/Nikola Tesla y Guglielmo Marconi
An electrical device that receives radiotelegraphy or radiotelephony waves and transforms them into sounds or signals. -
Television/John Logie Baird
System of transmission of images and sounds at a distance by means of hertzian waves. -
Computer/Konrad Zuse
Electronic machine that can store information and proces it automatically through mathematical and logical operations by computer programs -
Tablet/Alan Kay
Is a type of laptop,larger than a smartphone,integrated into a touch screen that interacts primarily with with the the fingers,without the need for a physical keyboard or mouse. -
Mobile phone/Martin Cooper
An electronic wireless device that allows access to the cellular or mobile phone network.
