1) Analog signal is a continuous signal which 1) Digital signals are discrete
represents physical measurements. time signals generated by
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.