X

XG
Yamaha's expansion on the GM system. It provides further patches access and editing parameters. It is Yamaha's answer to Roland's GS system.

XGA
IBM video adaptor. Can display up to 65,000 colours with a video resolution of 1024 x 768 pixels.

XLR
A circular three-conductor shielded connector commonly used in professional applications for connection of low-level balanced audio signals to and from equipment. The XLR stands for Xternal, Live and Return. Also known as a Cannon connector XY
Stereo Signals.

XT
Extended Technology. PC architecture that preceded the AT architecture. It was based around the 8088 processor.