Differences between Digital and Analog System.

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Digital as well as Analog System, both are used to transmit signals from one place to another like audio/video. Digital system uses binary format as 0 and 1 whereas analog system uses electronic pulses with varing magnitude to send data.

Following are some of the important differences between Digital System and Analog System.


Sr. No.KeyDigital SystemAnalog System
1Signal TypeDigital System uses discrete signals as on/off representing binary format. Off is 0, On is 1.Analog System uses continous signals with varying magnitude.
2Wave TypeDigital System uses square waves.Analog system uses sine waves.
3TechnologyDigital system first transform the analog waves to limited set of numbers and then record them as digital square waves.Analog systems records the physical waveforms as they are originally generated.
4TransmissionDigital transmission is easy and can be made noise proof with no loss at all.Analog systems are affected badly by noise during transmission.
5FlexibilityDigital system hardware can be easily modulated as per the requirements.Analog system's hardwares are not flexible.
6BandwidthDigital transmission needs more bandwidth to carry same information.Analog tranmission requires less bandwidth.
7MemoryDigital data is stored in form of bits.Analog data is stored in form of waveform signals.
8Power requirementDigital system needs low power as compare to its analog counterpart.Analog systems consume more power than digital systems.
9Best suited forDigital system are good for computing and digital electronics.Analog systems are good for audio/video recordings.
10CostDigital system are costly.Analog systems are cheap.
11ExampleDigital system are: Computer, CD, DVD.Analog systems are: Analog electronics, voice radio using AM frequency.
Updated on 06-Jan-2020 06:37:34