A Digital-to-Analog Converter (DAC) is an electronic device that converts a digital code into an analog signal. While this analog signal can be used for pretty much anything, when talking about video game music, it refers to analog audio. DACs are used to play digital audio and they appear on all sound hardware that is able to do so. Through the years of audio hardware, many different DACs have been used with increasing levels of fidelity and abilities. The majority of arcade game features a DAC and most sound cards released for the home computer market utilize them as well.
The following hardware contains a DAC:
This list is meant to be in chronological order, but many release dates are missing.