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Telegraph- David Alter
Communication system that allows the transmission of information by means of electrical impulses and using a pre-established code of signs. -
Telephone- Alexander Graham Bell
Communication system that transmits voice and sound over long distances by electrical or electromagnetic means. -
Radio- Guillermo Marconi
The transmission and reception of electromacnetic waves of radio frequency, especially those carrying sound messages. -
Television- John Logie Baird
An electrical device that receives and reproduces images and sounds transmitted by television. -
Computer- Konrad Zuse
Electronic machine capable of storing information and processing it automatically through mathematical and logical operations controlled by computer programs. -
Tablet- Alan Kay
Is a portable electronic device larger than a smartphone or a PDA, it is a single piece that integrates a touch screen that emits light and with which it interacts primarily with the fingers or a stylus, without the need for physical keyboard or mouse. -
Mobile phone- Martin Cooper
Is an artifact that is used to communicate on a mobile basis. The technology basically consists of antennas distributed in a coverage area that interact with the device, sending and receiving signals with it.
