Windows 7, released by Microsoft in 2009, included a set of clean system sounds for everyday actions, including the short chime played when a USB device was connected. The sound became familiar to millions of PC users during the operating system's long run on home and office computers. After Windows moved on to newer notification tones, the old chime survived in memes, tech comedy and nostalgia edits, where its brief two-note shape instantly signals a successful connection. It remains popular because listeners recognise it immediately, even without any picture on screen.