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Chapter 10 - Communication

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Answer
Bandwidth   Bandwidth is the range of signal frequency that can be sent over a given medium at the same time  
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Spectrum of a signal   is the range of frequencies that it contains  
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Communication   Signal contains a massage composed of data and information.  
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Telecommunication   Transmission of data from one device to another device in a different location  
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Data Communication   Electronic collection, processing, and distribution of data  
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Telecommunication Medium   Telecommunication Medium is anything that carries an electronic signal and interfaces between a sending device and a receiving device  
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Analog signal   An analog signal is a continuously varying electromagnetic wave that may be propagated over a variety of media, depending on spectrum  
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Digital signal   A digital signal is a sequence of voltage pulses that may be transmitted over a wire medium.  
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Guided media   With guided media, the wave are guided along a physical path  
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Unguided media   Unguided media provide a means for transmitting electromagnetic waves but do not guide them  
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