Place it at the exact frame a popup appears in your timeline, then pair it after a mysterious button click to complete the retro PC sequence, and save a second play for the closing reveal of the same scene.
About this sound
This clip is the short system notification chime from Windows 1.0, a clean electronic alert tone lasting just over five seconds. It feels crisp, nostalgic and slightly urgent, like an early computer politely demanding attention. Its simple beep-like melody instantly signals a popup, a finished task or a system message from the first era of Windows.