The chord comes from the set of default sounds installed with Microsoft Windows, where the file named chord has been included in the system media folder for generations of the operating system. It was designed as a short, neutral musical cue rather than a voice or alarm, which made it suitable for general alerts. As clips of old desktop screens became a visual shorthand online, creators began lifting the chime for memes, tutorials and retro edits, where it now signals a computer moment without any explanation needed.