Line out

Line out connection on the back of a computer sound cardAlternatively referred to as the sound out, the line out or line-out is a port found on computer sound cards that allow external speakers, headphones, or other output devices to be connected to the computer, which enables computer generated sound and audio can be heard. In the picture to the right, is an example of the back of the sound card. With this example sound card, there are three line out port ports that are green, black, and orange each represented with an arrow pointing out of sound waves. With most computers, you will only have one sound out connector that will be green.

Also see: Line in, Output, Sound card, Sound definitions, Speakers