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Definition of "Radio" |
The use of electromagnetic radiation to communicate electrical signals without wires. In the widest sense the term incorporates sound broadcasting, television and radar. / Telecommunication by modulation and radiation of electromagnetic waves. / Orginated from wireless telegraphy, / Radio is the wireless transmission of signals through free space by electromagnetic radiation of a frequency significantly below that of visible light, in the radio frequency range, from about 3 kHz to 300 GHz. These waves are called radio waves. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space. / In computer science, real-time computing, or reactive computing, is the study of hardware and software systems that are subject to a real-time constraint,example operational deadlines from event to system response. |
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