Quote Originally Posted by Laraul View Post
No, there's no emulation of anything. Boot camp is just a tool to help assisting in creating a bootable windows partition from MacOS X. That's it. There's nothing unique about PCs that allow Windows to boot. Nor is there anything unique about Macs that prevent Windows from booting. It's like installing Linux on a PC with Windows already installed.
Depends on various things.. Windows prior to Vista doesn't support booting on EFI hardware, and starting with Vista supports booting on UEFI hardware. Not all Macs have the latest UEFI, but older EFI, in which case there needs to be a BIOS emulation for Windows to install.