Ans :
| Analog | Digital |
| Signals are records waveforms as they are. Signal occupies the same order of spectrum as the analog data. | Converts analog waveforms into set of numbers and records them. The numbers are converted into voltage stream for representation. In case of binary it is converted in 1’s and 0’s. |
| In analog systems electronic circuits are used for transformation of signals. | In this transformation is done using logic circuits. |
| About Noise analog signals are more likely to get affected and results in reducing accuracy | Digital signals are less affected, because noise response are analog in nature |
| Analog signal is a continuous signal which transmits information as a response to changes in physical phenomenon. | Digital signals are discrete time signals generated by digital modulation. |
| Data transmission is not of high quality | Data transmission has high quality. |
| Analog devices are not very precise. | Digital systems are very precise. |
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