objects, removing from pictures, 608-609
office suites, 525
online multiplayer games, 531
online resources, for technical support, 23
on-screen cues, 483
on-screen keyboard, 214-215, 489
OpenOffice Impress, 576-577
operating systems, 84-87. See also names of specific operating systems
I/O devices management, 86
memory management, 85-86
overview, 493-494
processor management, 84-85
providing interface to application programs, 86-87
providing user interface, 87
storage management, 86
optical tracking, on mice, 218-219
optimizing Windows
customizing the Taskbar, 421-425
display settings, 412-421
Appearance tab, 417-420
Desktop tab, 414-416
Screen saver tab, 416-417
Settings tab, 413-414
Themes tab, 420-421
setting mouse options, 421
System Tray, 425-428
hiding inactive icons, 427-428
setting date and time, 425-426
turning sound on or off, 410-412
outputs. See inputs and outputs
overclocking
cooling, 308-309
graphics controllers, 309-313
methods, 305-307
reasons not to overclock, 304-305
reasons to overclock, 303-304