Monday, 28 March 2016

DATA COMMUNICATION

Data communication is a process of change or transfer information in a form of a digital data (binary) in between two or more devices using electronic delivery system.


Types of signal:
Signal can be two types:
-Digital
-Analog

    
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Data Transmission Mode:
-Parallel transmission

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-Serial transmission

 
3 serial transmission modes

1)synchronous  transmission

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2) asynchronous transmission



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3) isochronous transmission
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