Editing PC speaker (section)

==== Other programs ====
Several programs, including MP (Module Player, 1989), [[Scream Tracker]], [[FastTracker 2|Fast Tracker]], [[Impulse Tracker]], and even [[device driver]]s for [[Linux]]<ref>{{cite web|last=Sergeev |first=Stas |title=PC-Speaker PCM driver for Linux |url=http://geocities.com/stssppnn/pcsp.html |access-date=2009-02-15 |archive-url=https://web.archive.org/web/20091026062530/http://geocities.com/stssppnn/pcsp.html |archive-date=26 October 2009 |url-status=unfit }}</ref> and [[Microsoft Windows]], could play PCM sound through the PC speaker.

Modern Microsoft Windows systems have PC speaker support as a separate device with special capabilities – that is, it cannot be configured as a normal audio output device. Some software uses this special sound channel to produce sounds. For example, [[Skype]] can use it as a reserve calling signal device for the case where the primary audio output device cannot be heard (for example because the volume is set to the minimum level, the amplifier is turned off or headphones are plugged in).

In the 1990s, a [[computer virus]] for [[Microsoft DOS]] named "Techno" appeared, playing a melody through the PC speaker while printing the word "TECHNO" on the screen until filled.<ref>{{cite web |last1=Nastasi |first1=Alison |title=The World's Worst Computer Viruses Illustrated |url=https://www.flavorwire.com/468318/the-worlds-worst-computer-viruses-illustrated |website=Flavorwire |access-date=11 September 2021 |language=en |date=2014-07-19}}</ref>