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Device that uses electrical signals to transmit encrypted text messages
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It is a means of communication that is based on the sending of audio signals through radio waves
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It was designed to transmit acoustic signals at a distance by means of electrical signals
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System for the transmission and reception of images and sounds at a distance that simulate movements, which uses a diffusion mechanism
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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 output units
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It is a portable electronic device that is larger than a smartphone or a PDA, it is a single piece that integrates a touch screen
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Is a portable phone that can make or receive calls through a radio frequency carrier
