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Telegraph - Samuel F.B. Morse
Is a device that uses electrical signals to transmit coded text messages, such as Morse code, over wire lines or radio communications -
Telephone - Alexander Graham Bell
Is a communication system that transmits voice and sound over a long distance by electrical or electromagnetic means -
Radio - Guglielmo Marconi
It is a form of telecommunication that is carried out through radio waves, which in turn is characterized by the movement of electric fields and magnetic fields -
Television - Philo Farnsworth
Is a system for the transmission of images and sounds at a distance by means of Hertzian waves -
Tablet - Alan Kay
It's a laptop larger than a smartphone, integrated in a touch screen with which you interact primarily with your fingers without the need for a physical keyboard or mouse -
Computer - Adam Osborne
Is an electronic machine capable of storing information and processing it automatically through mathematical and logical operations controlled by computer programs -
Mobile phone - IBM Simon
Cell phone with a touch screen, which allows the user to connect to the internet, manage email accounts and install other applications and resources as a small computer
