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The telegraph is a device or device that uses electrical signals for the transmission of coded text messages, through wire lines or radio communications.
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It is a small device, which has endless functions, the processing and exchange of information, the connection to a network, all of this through an internal and unlimited memory.
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It is an electronic device that allows you to listen to an emitter using electromagnetic waves.
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Television is a remote image and sound transmission system through Hertz waves.
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It is a computing device that is capable of receiving, storing and processing information in a useful way.
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It is a device like a computer without a keyboard and a larger mobile.
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It is a means of electronic communication using electromagnetic waves.
