The sound card converts digital data into an analog signal that is then output to the computer's speakers or headphones. The reverse is also accomplished by inputting a signal from a microphone or other audio recording equipment, which then converts the analog signal to a digital signal.

Question

Quizplus · Accepted Answer

A sound card performs digital-to-analog conversion for output and analog-to-digital conversion for input, allowing it to handle both playback and recording of audio.

The Sound Card Converts Digital Data into an Analog Signal