What is the difference between digital and analog signals in Electronics and Communications?

In Electronics and Communications, digital and analog signals are two types of signals used to transmit information. Here are the key differences between the two:

Digital Signals:

• Consist of discrete values or levels, represented by binary numbers (0s and 1s).
• Can be easily processed and manipulated using digital circuits.
• Have higher noise immunity compared to analog signals.
• Usual applications include computer systems, digital communication, and data transmission.

Analog Signals:

• Consist of continuous values that vary smoothly over time.
• Can carry infinite values within a specific range.
• Susceptible to noise and distortions during transmission.
• Used in audio and video transmission, radio communication, and electrical signals.

In conclusion, the main difference between digital and analog signals lies in their representation of information - discrete values for digital signals and continuous values for analog signals. Each type has its own advantages and limitations depending on the application requirements.