Sosumi is one of the best-known system sounds from the classic Macintosh era and was included in Mac OS 7 through 9. It became familiar to users through everyday alerts, then later found a second life online in retro computing videos, interface compilations and nostalgia posts. The sound still gets used because it is instantly recognizable to many longtime Mac users and because its short, tasteful tone fits edits that need an old-school computer cue without sounding overly dramatic.