Are sound cards necessary in a PC?
Technically, a sound card is an optional component but a necessary one if you want to hear sound from your PC on wired headphones or speakers (just like an external DAC), or plug in a mic with an analog output.
Do PCs still use sound cards?
For years, getting a dedicated sound card for your PC was a given because it was the only way to get quality sound. Modern PCs, however, have good audio hardware built into their motherboards. But dedicated sound cards still exist.
What does a sound card do for a PC?
A sound card (also known as an audio card) is an internal expansion card that provides input and output of audio signals to and from a computer under control of computer programs. The term sound card is also applied to external audio interfaces used for professional audio applications.
Is a sound card necessary for gaming?
A dedicated sound card is not required. But a sound card might increase gaming enjoyment, especially if you already have high quality speakers.