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Telegraph - Samuel Morse
It's a device that uses elctric signals to transfer coded messages. -
Radio - Nikola Tesla
It's a way of communication through radio waves. -
Telephone - Alexander Graham Bell
The telephone is a communication device that receives and produces sounds over long distances. -
Television - John Logie Baird
It's the system of the transmission, reception of images and sounds at a distance that simulate movement. -
Computer - Konrad Zuse
It's an electronic machine that receives and processes data in order to have useful information. -
Mobile phone - Martin Cooper
It's a portable phone that can make or receive calls while the user is on the move. -
Tablet - Bill Gates
It's a portable digital device with the functions of a computer with the difference that it is smaller and contains a touch screen.
