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Telegraph - Samuel Morse
is a device or device that uses electrical signals for the transmission of encoded text messages, such as with the Morse code, by wire lines or radio communications. -
telephone - Graham Bell
it is a telecommunication device designed to transmit acoustic signals remotely via electrical signals. -
Radio - Guillermo Mrconi
it is a means of communication that is based on sending audio signals via radio waves, although the term is also used for other forms of remote audio sending such as Internet radio. -
Television - John Loige
it is a system for the transmission and reception of images and sounds from a distance that simulate movements, which employs a diffusion mechanism. -
Computer- Honrad Zuse
it is a programmable digital machine that executes a series of commands to process the input data, obtaining convenient information that is subsequently sent to the salid units -
Tablet - Alan Kay
it is a type of laptop, larger than a smartphone or PDA, integrated into a touch screen with which you interact primarily with your fingers, without the need for a physical keyboard or mouse. -
Mobil Phone - Martin Cooper
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
