Difference Between Analog And Digital Signal

Analog and Digital signals are the types of signals carrying information. The major difference between both signals is that the analog signals that have a continuous electrical, while digital signals non-continuous electrical. The difference between analog and digital signal can be observed with the various examples of different waves.

Analog and Digital

Analog Signals

The analog signals were used in many systems to produce signals to carry information.  These signals are continuous in both values and time. The use of analog signals has been declined with the arrival of digital signals. In short, to understand the analog signals –  all signals that are natural or comes naturally are analog signals.

Digital Signals

Unlike analog signals, digital signals are not continuous but signals are discrete in value and time. These signals are represented by binary numbers and consist of different voltage values.

Difference Between Analog and Digital Signal

We know that the major difference between analog and a digital signal is that analog signals are continuous signals, while digital signals are discrete signals. In the video below we have discussed more differences between them.


Summarising, we have given the various Differences between Analog and Digital Signal in a tabular form below.

Difference Between Analog And Digital Signal
Analog Signals
Digital Signals
Continuous signals
Discrete signals
Represented by sine waves
Represented by square waves
Human voice, natural sound, analog electronic devices are few examples
Computers, optical drives, and other electronic devices
Continuous range of values
Discontinuous values
Records sound waves as they are
Converts into a binary waveform.
Only be used in analog devices.
Suited for digital electronics like computers, mobiles and more.

Both these signals are used in electronic communication system to transfer information from one place to another.

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