Explain the Difference Between Analog and Digital Signals.

People sometimes prefer analog signals over digital signals because analog signals are continuous and can represent real-world phenomena more naturally and with more detail compared to digital signals. Analog signals are often simpler to process, more energy efficient, and use less bandwidth. They are especially preferred in audio and video applications where the natural, continuous variations of signals are important. Analog signals also have higher density and can convey more refined information in some contexts. However, analog signals are more susceptible to noise and signal degradation over long distances, which is why digital signals are often favored for transmission and storage. The preference for analog signals is therefore largely due to their natural representation of real-world inputs and potentially lower cost and complexity in simpler applications, despite the superior noise immunity and processing flexibility of digital signals.