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telegraph (Samuel Morse)
The telegraph is a device or device that uses electrical signals for the transmission of coded text messages, through wire lines or radio communications. -
telephone (Alexander Graham)
It is a small device, which has endless functions, the processing and exchange of information, the connection to a network, all of this through an internal and unlimited memory. -
radio (Guillermo Marconi)
It is an electronic device that allows you to listen to an emitter using electromagnetic waves. -
television (Alexander Graham)
Television is a remote image and sound transmission system through Hertz waves. -
computer (Konrad Zuse)
It is a computing device that is capable of receiving, storing and processing information in a useful way. -
tablet (Alan Kay)
It is a device like a computer without a keyboard and a larger mobile. -
mobile phone (Martin Cooper)
It is a means of electronic communication using electromagnetic waves.
