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The computer is an electronic system used to store and process data. The computer takes data from the outside (through the input units), stores it in its memory, processes it and sends it to the operator (through the output units). -
Thelegraph is an electrical device capable of transmitting text messages by means of Morse code, in electrically emitted signals. -
Telephone is an electrical device to verbally communicate with another person who is not in the same physical location. -
The radio is a means of communication that is based on the sending of audio signals through radio waves. -
It is a system for the transmission and reception of images and sounds at a distance that simulate movements -
The tablet allows you to write directly on your screen using a stylus. -
The movil phone is an electronic device that allows communication through various tools: by telephone, through applications, emails, among others.