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Telegraph-David Alter
The telegraph 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
The telephone is a communication device that is used to talk directly to someone who is in a different place. -
Radio-Guillermo Macorni
Radio is a mass communication medium that allows transmission between those who are in charge of carrying out a radio program and society, in such a way that an informative dynamic can be established. -
Television-John Loige Baird
It is an electrical device that transmits a signal at a distance with image and sound. -
Computer-Konard Zuse
Is an electronic machine that is used for storing, organizing, and finding words, numbers, and pictures, for doing calculations, and for controlling other machines -
Tablet-Alan Kay
It is a portable electronic device larger than a smartphone or a PDA, that integrates a touch screen. -
Mobile phone-Martin Cooper
It is an electronic wireless device that allows access to the cellular or mobile telephone network.
