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Its a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.
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the transmission and reception of electromagnetic waves of radio frequency, especially those carrying sound messages.
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Its a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations to electrical signals.
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Its a system for converting visual images with sound into electrical signals, transmitting them by radio or other means, and displaying them electronically on a screen.
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an electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program.
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it is a type of laptop, larger than a smartphone
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its a telephone with access to a cellular radio system so it can be used over a wide area, without a physical connection to a network.
