Taskbar
Mac OS X doesn’t have a taskbar, but it does have something very close: the Dock (Chapter 2). Open programs are indicated by a small, shiny dot beneath their icons in the Dock. If you hold down your cursor on one of these icons (or Control-click it, or right-click it), you get a pop-up list of the open windows in that program, exactly as in Windows XP, Vista, and 7.
On the other hand, some conventions never die. Much as in
Windows, you cycle through the various open Mac programs by holding
down the 
key and pressing Tab repeatedly.
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