Analog devices are electronic components that process continuous signals. Unlike digital devices, which work with discrete values (like 0s and 1s), analog devices can represent a range of values. Common examples include resistors, capacitors, and amplifiers, which are used in various applications such as audio equipment and sensors. These devices are essential in many everyday technologies, including televisions and radios. They convert physical phenomena, like sound or light, into electrical signals that can be manipulated and transmitted. Understanding analog devices is crucial for fields like electronics and engineering.