The '''System Management Controller''' ('''SMC''') is a subsystem of [[Intel]] processor-based [[Macintosh]] computers. It is similar in function to the older [[System Management Unit|SMU]] or [[Power Management Unit|PMU]] of non-Intel Macintosh computers.<ref>{{cite web |title=HT2368: About the SMC Firmware Updates |url=http://docs.infosupport.apple.com:80/articlekb/HT2368?viewlocale=en_US |website=Official Apple Support |publisher= |archiveurl=https://web.htmlarchive.org/web/20081223202919/http://support.apple.com:80/kb/HT2368?artnumviewlocale=303725en_US |archivedate=2008-12-23}}</ref><ref>{{cite web |title=HT202040: About the SMC Firmware Updates |url=https://support.apple.com/en-us/HT202040 |website=Official Apple Support |publisher= |accessdate=26 December 20162018-04-28}}</ref>
==Overview==
The SMC has roles in controlling thermal and power management, battery charging, video mode switching, [[Sleepsleep mode|sleep and wake]], [[Hibernationhibernation (computing)|hibernation]], and [[Lightlight-emitting diode|LED]] indicators. It also enables enforcement of the [[Mac OS XmacOS]] [[End-user license agreement|End User License]], allowing it to identify when it is running on non-Apple hardware.<ref>{{cite webpodcast |titlehost=InterviewRandal withSchwartz Andy|date=2010-08-11 Hall, Product Manager for Oracle VM|df=mdy |title=VirtualBox |url=httphttps://twit.tv/floss130shows/floss-weekly/episodes/130 |website=FLOSS Weekly |series=130 |publisher=[[TWiT.tv]] |accessdate=2018-04-28}}</ref>
==See also==
* [[Embedded controller]] (EC)
Line 13 ⟶ 14:
==References==
{{reflist}}
<references/>
==External links==
*[httphttps://support.apple.com/kb/HT1237HT201518 EFI and SMC firmware updates for Intel-based Macs]
