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Physical Layer and Media
Analog and Digital
Periodic Analog Signals
Digital Signals
Transmission Impairment
Data Rate Limits
Performance
To be transmitted, data must be transformed to electromagnetic signals
Data can be analog or digital. Analog data are continuous a...See more
nd take continuous values. Digital data have discrete states and take on discrete values.
Signals can be analog or digital. Analog signals can have an infinite number of values in a range; digital signals can have only a limited number of values.
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DC Unit - II(A).ppt
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