A Digital-to-Analog Converter (DAC) is an electronic device that transforms digital signals, which are represented as binary numbers, into analog signals. These analog signals can be in the form of voltage or current, making them suitable for driving speakers, displays, or other devices that require continuous signals. DACs are essential in various applications, including audio equipment, video devices, and telecommunications. DACs work by interpreting the digital input and producing a corresponding analog output. The quality of a DAC can significantly affect the performance of devices like audio players and televisions, as it determines how accurately the digital information is converted into sound or image.