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Telegraph (Samuel Morse)
It is a device that transmits coded messages over a long distance by means of electrical impulses that circulate through a conductive wire. -
Telephone (Alexander Graham)
Telephone is a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals.
It was invented by Antonio Maucci in 1854 in 1876 was patented by Alexander Graham Bell and together with Elisha Gray, they were considered the inventors of the telephone for a long time. -
Radio (Guglielmo Marconi)
It is a form of telecommunication that is carried out through waves, it is characterized by the movement of electric and magnetic fields. It is usually informative -
Television (John Logie Baird)
System for the transmission of images and sounds at a distance by means of Hertzian waves.The transmission can be carried out by means of radio waves, by cable television networks, satellite television or IPTV. -
Computer (Konrad Zuse)
Computer is an electronic machine capable of storing information and processing it automatically through mathematical and logical operations controlled by computer programs. -
Tablet (Alan Key)
A tablet is an electronic device that has an intermediate size between the computer and the mobile, it has a touch screen with which it interacts without the need for a keyboard or mouse. -
Mobile phone (Martin Cooper)
A mobile phone is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area.
