what is Data transfer (DCCN-1)

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Data transfer


-It is the way to communicate data and sharing data the sharing can be local and renote
-it is the exchanging of data a between two devices and same transmission medium like wire and   wireless.
-in whole communication system then must a physical component equipment and software.
-the data communication system depended in 4 major characteristics.these are 1.delivery
                                                                                                                              2.accuracy
                                                                                                                              3.timeline

1.delivery 
the system must deliver the data to the correct destination.

2 accuracy
the system must deliver the data in accurately.

3 timeline 
the system must deliver the data with in proper time.


-it refers to the variation in packet arrival time.
-lets video packet are send at every so millisecond.
-if some of the packet are arrival with 30 millisecond and other with 40 millisecond delay.
-the data communication are 5 components.

  sender-----------communication channel-----------receiver


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