It runs Windows, too.
Have a Windows application you need to use once in a while? No problem. Every new Mac lets you install and run Windows at native speeds, using a built-in utility called Boot Camp.
Setup is simple and safe for your Mac files. After you’ve completed the installation, you can boot up your Mac using either Mac OS X or Windows. (That’s why it’s called Boot Camp.) Or if you want to run Windows and Mac applications at the same time — without rebooting — you can install Windows using VMware or Parallels software.*