Sound Cards
Sound cards are computer expansion cards that allow a computer to output audio. Most computers have sound cards built-in, but some computers require an expansion sound card. A sound card converts digital data into an analog signal that can be amplified and output to speakers. A sound card can also input and record analog signals.

What Is a Sound Card? Concept, Background, Functions, and More!
What is a sound card? This device is far more useful for your computer than you may think. Learn here its history now!