Home Theater PC (HTPC) or media PC

is a convergence device that combines the functions of a personal computer and a media center software which feature video and music playback, and usually but not always also digital video recorder functionality. It usually has a 10-foot user interface and is connected to a television or a television-sized computer display, and is often used as a digital photo, music, video player, TV receiver and digital video recorder, and normally controlled with a remote control.
The general goal of an HTPC is usually to combine many or all components of a home theater setup into a single machine that will be located where the home theater system is desired. An HTPC system is typically controlled with a remote control for controlling the main interface, and the GUI normally has a 10-foot user interface design so that it can be comfortably viewed from a such distance. An HTPC can be purchased pre-configured with the required hardware and software needed to add television programming to the PC, or can be cobbled together out of discrete components as is commonly done with Windows Media Center, MediaPortal ,SageTV, MythTV, Freevo, or LinuxMCE.