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The "Heads-Up" Program Switcher

5.2. The "Heads-Up" Program Switcher Only one program can be in front, or active, at a time. To make a different program active, you could click or double-click its icon | 5.2. The Heads-Up Program Switcher Only one program can be in front or active at a time. To make a different program active you could click or double-click its icon in the Dock the Applications folder or whatever . But the fastest method is to use the -Tab keystroke Figure 5-3 . Figure 5-3. Apple calls this row of open program icons a heads-up display named after the projected data screens on a Navy jet windshield that lets pilots avoid having to look down at their instruments. You can use this feature in three different ways which are well worth learning If you keep the key pressed each press of the Tab key highlights the Dock icon of another program in left-to-right Dock order. Release both keys when you reach the one you want. Mac OS X brings the corresponding program to the front. To move backward through the open programs press Shift- -Tab. If you leave the key pressed you can choose a program by clicking its icon with your mouse. A single press of -Tab takes you to the program you used most recently and another press returns you to the program you started in. Imagine that for example you re doing a lot of switching between two programs your Web browser and your email program for example. If you have five other programs open you don t waste your time -Tabbing your way through all open programs just to get back to your Web browser. Tip Here s a related keystroke equally awesome. If you press -tilde the key next to the 1 key you switch to the next window in the same .