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Analog                                                                 Digital
1) Analog signal is a continuous signal which        1) Digital signals are discrete 
represents physical measurements.                          time signals generated by
                                                                              digital modulation.
2) Donated by sine waves.                                    2)Donated by square waves.
3) Stored in the form of wave signal.                       3) Stored in the form of binary                                                                                 bit.
4)Analog instrument draws large power.                  4)Digital instrument draws                                                                                      only negligible power.
5) More likely to get affected reducing accuracy.      5)Less affected since noise                                                                                  response are analog in nature.          
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