This means that none of your Mac content is touched at all, and Boot Camp has no effect on the operation of Mac OS. Boot Camp creates a Windows partition on your hard drive, along with the Mac OS partition. Boot Camp supports Windows XP, Windows Vista and Windows 7 (with OS X 10.6 or later).
Boot Camp is a Mac OS X utility that lets you run Windows on your Mac without relying on virtual machines or crippled emulators.