OSDev.org

I was looking for info on coding a command to power off the computer?
Protected mode (during C kernel)

any help, source, guides, links?

(Yes I have googled this)
If you do find this by Googling it, please tell me what you typed.

http://www.google.ca/search?hl=en&clien ... tnG=Search
Third from the top.

You obviously didn't look very hard. Wiki: Shutdown