A keyboard shortcut for viewing open applications, files and switching from one to another.
Even though the Mac desktop bears many similarities to Windows interface, there are some features missing in the Mac’s Finder. This hot key combination AltTab allows you to instantly view a 3D dialog on your screen with open application names and icons, and enables you to switch to different applications without pulling down the Application menu. The user defines the hot-key combination. You can also quit any open application without manually switching to the application.
PPC