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Telegraph (Samuel Finley Breese Morse)
Is a device or device that uses electrical signals to transmit text messages. -
telephone (Alexander Graham Bell)
Is a telecommunication device designed to transmit acoustic signals at a distance by means of electrical signals. -
Radio(John Logie Baird)
It is a means of communication that is based on the sending of audio signals -
television (John Logie Baird)
is a system for the transmission and reception of images and sounds. -
Computer(Konrad Zuse)
Is a programmable digital machine that executes a series of commands to process the data -
Tablet(Alan Kay)
It is a portable electronic device that is larger than a smartphone and has the same function -
mobile phone(Martin Cooper)
It's a portable phone that can make or receive calls.
