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tablet
is a portable electronic device bigger than the telephone. His creator his Alan Kay -
Telegraph
El telégrafo es un aparato o dispositivo que emplea señales eléctricas para la transmisión de mensajes de texto codificados, como con el código Morse. Samuel Finley Breese Morse invent the telegraph -
Telephone
The telephone is a telecommunication device designed to transmit acoustic signals at a distance by means of electrical signals. It was invented by Antonio Meucci -
Television
Television is a system for the transmission and reception of images and sounds at a distance that simulate movements, which uses a diffusion mechanism. His inventor is John Logie Baird. -
Radio
It is a means of communication that is based on the sending of audio signals through radio waves. His creator his Guglielmo Marconi -
computer
it is a programmable digital machine that executes a series of commands to process the input data. His creator his Honrad Zuse -
mobile phone
is a portable telephone that can make or receive calls through a radio frequency carrier.His inventor his Martin Cooper
