To convey information from the source to the information conveyed to the recipient
Definition of information: the characteristics of the source
Understanding analog and digital signals
- Analog signals: the signal at a specific time frame has a number of amplitude that is not limited
- Digital Signal: signal at a certain time span has a limited number of amplitude
Benefits of digital and analog signals
Digital signal
- Easy on the analysis
- Can be stored in electronic media
Analog signals
- Some can not be saved
- Susceptible to noise
- Little lost power
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