Windows 11 launched in 2021 as Microsoft's successor to Windows 10, bringing a refreshed set of system sounds including a library of default alarm tones numbered for selection in the Clock app. Alarm 6 is one of those built in options users cycle through when setting a wake up call on a PC or laptop. Clips of the tone later spread online as standalone files for videos and soundboards, where its instantly recognisable PC alarm feel separated it from phone ringtones and made it useful for everyday routine jokes.