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Computer, Charles Babbage
Computer is a programmable digital electronic machine that executes a series of commands to process input data -
telegraph, Samuel Morse
A telegraph is a machine used to transmit coded information using electrical signals.If there was no flow of electricity, the pencil draws a straight line. When there was that flow, the pendulum swung and a zigzag was drawn on the line. -
Telephone, Antonio Meucci and Alexander Graham Bell
The mobile phone is an invention that is used to communicate with a person more easily and quickly. You can write and call. -
Radio, Guillermo Marconi,
It is a means of communication that is based on the sending of audio signals through radio waves, although the term is also used for other forms of remote audio transmission such as Internet radio -
television, John Logie Baird
Television is a system for the transmission and reception of images and sounds at a distance that simulate movement, it can be seen live or recorded. Also serves as a DVD player -
teblet, Alan Kay
A tablet is a mobile device due to its size that, initially, is just a screen and internal components. They do not usually have a keyboard, so the screen is touch. -
mobile phone, Martin Cooper
A mobile phone or cell phone 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.