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Computer - William Thomson
A computer is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically -
Telephone - Antonio Meucci
A communication system that transmits voice and sound over long distances by electrical or electromagnetic means. -
Radio - Guglielmo Marconi
A means of communication based on sending audio signals via radio waves. -
Television - John Logie Baird
System for the transmission of images and sounds at a distance by means of hertzian waves. -
Tablet - Alan Kay
Portable computer larger than a smartphone, integrated into a touch screen with which you interact primarily with your fingers without the need for a physical keyboard or mouse. -
Mobile phone - Martín Cooper
A mobile phone, or mobile phone, is a portable phone that can make or receive calls through a radio frequency carrier. -
Telegraph - Samuel Morse
Communication or message transmitted by telegraph
