The sound comes from Minesweeper as it appeared in Windows Vista, Microsoft's operating system released in 2007. Minesweeper had been bundled with Windows since the early 1990s, but the Vista version gave the puzzle a cleaner look and a fresh set of sounds for starting and playing a round. As clips from classic Windows games began circulating on soundboards and in short-form videos, this short startup jingle became shorthand for retro computing. It endures because it instantly signals an old PC, a familiar puzzle and a simpler era of desktop gaming.