An Analog to Digital Converter (ADC) is an electronic device that transforms continuous signals, such as sound or light, into a digital format that computers can process. This conversion allows analog signals, which vary smoothly over time, to be represented as discrete values, enabling digital devices to interpret and manipulate the information. ADCs are essential in various applications, including audio recording, video processing, and sensor data acquisition. By converting real-world signals into digital data, they facilitate the use of digital technology in everyday devices like smartphones, cameras, and medical equipment, enhancing their functionality and performance.