Windows Media Center was Microsoft's software for turning a home computer into a living-room media hub for television, music, photos and DVDs, controlled from a sofa with a remote. Its calm startup chime matched that relaxed, entertainment-first design, very different from a standard office desktop sound. As those media PCs disappeared, the sound survived in online sound libraries and retro computing videos, where it now works as instant shorthand for early 2000s home entertainment and the era when a PC first moved into the living room.