CompTIA A+ | Microsoft MTA O/S: Sound cards
Sound cards connect as x1 PCIe or PCI cards and normally have PC 99 color-coded 1/8” mini-jacks for I/O and speakers, and optical I/Os known as S/PDIF (example: TOSLINK).
Alternatively referred to as an audio output device, sound board, or audio card. A sound card is an expansion card or IC for producing sound on a computer that can be heard through speakers or headphones. Although the computer does not need a sound device to function, they are included on every machine in one form or another, either in an expansion slot (sound card) or on the motherboard (onboard).
Sound card connections
- Digital Out (White or Yellow; words: “Digital” or “Digital Out”) – Used with surround sound or loudspeakers.
- Sound in or line in (Blue; Arrow pointing into waves) – Connection for external audio sources, e.g. tape recorder, record player, or CD player.
- Microphone or Mic (Pink; Microphone) – The connection for a microphone or headphones.
- Sound out or line out (Green; Arrow pointing out of waves) – The primary sound connection for your speakers or headphones. This sound card also has a second (black) and third (orange) sound out connector.
- Firewire (Not pictured) – Used with some high-quality sound cards for digital video cameras and other devices.
- MIDI or joystick (15 pin yellow connector) – Used with earlier sound cards to connect MIDI keyboard or joystick.
Tip: Usually the cables connecting to the devices are also color-coded and will match or be close to the colors the cables connect into. For example, the end of the speakers cable may have a green line or be completely green.
Uses of a computer sound card
- Games
- Audio CDs and listening to music
- Watch movies
- Audio conferencing
- Creating and playing Midi
- Educational software
- Business presentations
- Record dictations
- Voice recognition
Source By:<www.computerhope.com>
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