What is the difference between analog and digital signal ?

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Digital and analog are basically a type of signal that is used to exchange information. In shortcut analog technology the information is converted into electric pulse of different wavelengths. And in digital technology the information is in binary format. Differences between analog and digital signals 1. Signal: Analog Signal Continuous and Digital Signal Discrete (in Bengali , isolated!) Waves: Analog signals are emitted with a sine wave and square wave 3 is required to emit a digital signal. Example: In the air our mouthpieces , analog electronic devices, etc. use analog signals. Computers , CDs , DVDs, etc. use digital signals. 4. Noise Response: Due to noise, analog signals lose a great deal of accuracy , but the amount of digital signals is much less. 5. Usage: Best analog signal for audio-video transmission. And digital signals are the best for computing and electronic devices. . Cost: Analog technology is comparatively cheaper than digital.
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