What does the OS and the north bridge control?

[Guest]

What does the OS and the north bridge contro? What does the OS and the south bridge control?

 

[JackNaylorPE]

http://en.wikipedia.org/wiki/Northbridge_%28computing%29
http://en.wikipedia.org/wiki/Southbridge_%28computing%29
http://en.wikipedia.org/wiki/Operating_system