Windows 7, released by Microsoft in 2009, shipped with a complete set of system sounds for everyday actions such as logging in, receiving mail and connecting hardware. This short chime belonged to that default scheme and became familiar to millions of desktop users during the operating system's long run. After support ended and people moved to newer systems, the sound lived on through YouTube compilations, meme edits and soundboards, where it now works as instant shorthand for older PCs, plugging something in and a simpler era of computing.