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Telegraph-Samuel Morse
The telegraph is a device or device that uses electrical signals to transmit coded text messages, such as Morse code, over wire lines or radio communications. -
Radio-Nikola Tesla
Radio is a means of communication that is based on sending audio signals through radio waves. -
Telephone-Graham Bell
The telephone is a telecommunication device designed to transmit acoustic signals at a distance by means of electrical signals. -
Television-John Logie Baird
Television is a system for the transmission and reception of images and sounds at a distance that simulate movements, which uses a diffusion mechanism. -
Computer-Konrad Zuse
A computer is a computing device that is capable of receiving, storing and processing information in a useful way -
Tablet-Alan Kay
It is a larger laptop 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-Martin Cooper
Mobile telephony or cellular telephony is a means of wireless communication through electromagnetic waves
