Analog output refers to the continuous signal that represents data in a variable form, typically in the form of voltage or current. It is used to control devices or systems that require a variable input, such as motors, lights, or sensors. Unlike digital output, which uses discrete values (on/off), analog output can represent a wide range of values, allowing for smoother and more precise control. This type of output is commonly employed in applications where gradual changes are necessary, such as in audio systems, temperature control, and automated machinery. The ability to provide a continuous output makes analog systems ideal for scenarios requiring variable, dynamic response.