Knowledge of Mac

1. The so-called DMG format is an image file on the MAC system, or it can be said to be a compressed file. If you use a PC and don't have MAC OS X for X86 installed, don't bother. If you are using a Mac or installed MAC OS X for X86 on a PC, double-click the file on the MAC system to unlock it; if you want to burn the file to DVD, use toast to burn the file to a CD: dmg=>disc image

2.Launchpad
This is the application launcher that comes with OS X. Tap the Launchpad icon to access Launchpad from the Dock. Launchpad contains icons for all applications in the Applications folder.

3. Boot Camp is the public beta software of the Windows operating system for Mac computers based on Intel processors launched by Apple Computer on April 5, 2006. It allows users to install the Windows 7 operating system on an Intel processor-based Mac using a Windows 7 installation disk. After the installation is complete, users can restart their computer and choose to run Mac OS X or Windows 7. Boot Camp functionality has been integrated into Mac OS X 10.5 "Leopard" and later.