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Telegraph - Samuel morse
Communication system that allows the transmission of information by means of electrical impulses and using a pre-established code of signs. -
telephone - Graham Bell
Device that receives and transmits long-distance communications and is connected to a telephone network . -
radio - Guillermo Marconi
It is an electronic device that allows the recovery of voice signals or of any other type, transmitted by a radio transmitter using electromagnetic waves. -
television - John loige baird
System of transmission of images and sounds at a distance by means of hertzian waves. -
Computer - Konrad Zuse
Electronic machine capable of storing information and processing it automatically through mathematical and logical operations controlled by computer programs. -
Tablet - Alan Kay
A tablet, in many places also called by the Anglicism tablet, is a portable electronic device larger than a smartphone or a PDA -
Movile phone - Martin Cooper
It is a portable telephone that can make or receive calls through a radio frequency carrier, while the user is moving within a telephone service area.
