The sound comes from the Xbox 360, Microsoft's console launched in 2005, where it played whenever a player earned an achievement for completing a challenge or reaching a milestone. As gameplay clips, Let's Play videos and gaming memes spread online, the short chime became shorthand for success far beyond the console itself. It is still used today because it is instantly recognisable to a generation of players, carries a positive, rewarding feeling in under a second, and works as a quick audio punchline without needing any explanation.