The sound comes from the Sony PlayStation, launched in Japan in 1994 and worldwide in 1995, and played every time the console powered on with a disc inside. Composed for the boot sequence, it became inseparable from the grey startup screen and Sony Computer Entertainment logo. As the PS1 became one of the best selling consoles ever, millions heard it daily. Decades later it survives in memes, YouTube intros and TikTok edits as shorthand for retro gaming and 90s childhood.