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Difference Between Digital And Analog System

  • Last Updated : 09 Sep, 2019

Analog and digital signals are used to transmit information (such as any audio or video), usually through electric signals. In digital technology, translation of information is into binary format (either 0 or 1) and information is translated into electric pulses of varying amplitude in analog technology.

Comparison between Digital System and Analog System:

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Analog SystemDigital System

SignalAnalog signal represents physical measurements.Digital signals are discrete and generated by digital modulation.

Sine WavesSquare WavesRepresentation

Continuous range of values to represent informationUses discrete values to represent informationTechnology

Records waveforms as they are.Samples analog waveforms into a limited set of numbers and then records them.Data transmissions

Affected by noise during transmission and write/read cycle.Noise-immune during transmission and write/read cycle.Response to Noise

More likely to get affectedLess likely to get affectedFlexibility

Hardware is not flexible.Hardware is flexible.Bandwidth

Less bandwidth.More bandwidth to carry out the same informationMemory

Stored data in the form of wave signalStored data in the form of binary bitPower

Consumes large powerConsumes negligible powerUses

Best suited for audio and video transmission.Best suited for Computing and digital electronics.Cost

Cost is lowCost is highExample

Human voice in air, analog electronic devices.Computers, CDs, DVDs,
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