OpenELEC is a Linux-based operating system designed to support the XBMC media center application. It basically turns a PC into a media center which brings audio, video, pictures, and more to your TV.
OpenELEC 3.0 includes a number of improvements, including:
- Better detection of audio hardware on your PC
- Support for additional personal video recording software and hardware
- XBMC 12.1 improvements, including better UPnP and Airplay support, Live TV and PVR improvements, and advanced library filtering
While you can install XBMC on a wide range of computers running Windows, OS X, Linux, or other operating systems, OpenELEC is an option for a light-weight OS designed for users that want XBMC to be the only (or at least the most important) app running on their PCs. Paired with an inexpensive device like a Raspberry Pi, the free operating system makes adding media center functions to your TV a pretty affordable option.