The sound comes from Microsoft's original Xbox, released in 2001 as the company's first home video game console. It played each time the system powered on, accompanying the console's green logo animation and becoming closely linked with early 2000s gaming. As clips and remixes spread across video platforms, the short chime turned into a shorthand for nostalgia, old-school gaming, and the start of a play session. It remains popular today because it is instantly recognisable, even in just over a second, and carries the excitement of booting up a new machine.