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telegraph (George W. McGill)
Utensil used for stapling; it is equipped with a mechanism to nail the staples, which it usually bends at its ends so that once placed they do not come out. -
Telephone (Antonio Meucci)
Communication system that transmits voice and sound over long distances by electrical or electromagnetic means -
Radio ( Guillermo Marconi)
A straight line that joins the center of a circle with any point on the edge of the circumference -
television (John Logie Baird)
System of transmission of images and sounds remotely by means of Hertzian waves. -
tablet(Alan Kay)
Touchscreen laptop that has a rectangular shape and offers the same utilities as a standard computer; you don't need to use a keyboard or mouse to work with it. -
mobile phone (Martin Cooper)
A mobile phone or cell phone is a portable phone that can make or receive calls through a radio frequency carrier, while the user is moving within a phone service area. The radio frequency link establishes a connection to a mobile operator's switching systems, which provides access to the public switched telephone network -
computer(Charles Babbag)
A computer, also called a computer, is an electronic machine that receives and processes data with the mission of transforming it into useful information.
