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Telegraph
Is a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection. Was created in 1843 by David Alter. -
Telephone
Is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly. It was invented in 1876 by Antonio Meucci. -
Radio
It is a form of telecommunication that is carried out through radio waves or Hertzian waves, which in turn is characterized by the movement of electric fields and magnetic fields. Was invented in 1896 by Guglielmo Marconi. -
Television
System of transmission of images and sounds at a distance by means of Hertzian waves. Was invented in 1927 by 1927 -
Computer
It is a programmable digital electronic machine that executes a series of commands to process the input data, conveniently obtaining information that is subsequently sent to the output units. Was invented by Charles Babbage in 1970 -
Mobile Phone
It is a portable device that can make or receive calls through a radio frequency carrier, while the user is moving within a telephone service area. Was invented by Martin Cooper in 1973 -
Tablet
Is a portable electronic device larger than a smartphone. Was invented by Jeff Hawkins, in 1989.