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4. If your new video adapter makes the mouse cursor disappear, try changing the ______ setting.
Monitor, configure, and troubleshoot I/O devices
5. If Device Manager shows a red 'stop' icon by a device name, the device was ______.
6. I/O devices are allowed to share the same interrupt on the ______ bus.
Monitor, configure, and troubleshoot multimedia hardware
7. You can change a camera's or scanner's color profile by using the ______ control panel.
Install, configure, and manage modems
8. The name of the log file that Windows XP uses to record modem activity is ______.
Install, configure, and manage USB devices
9. No USB device can be farther than ______ meters from a USB hub.
Install, configure, and manage handheld devices
10. The maximum number of concurrent inbound serial connections is ______.
1. PCI, AGP. See 'Multiple display requirements and limitations' if this was news to you.
2. Settings. The 'Troubleshooting multiple monitors' section has more.
3. DXDIAG.EXE. You get half a point if you said 'DirectX Diagnostic Tool.' See the 'DirectX marks the spot' section for details.
4. Acceleration slider. See 'Configuring single displays' if you missed this one.
5. Disabled. Check for a resource conflict. The section 'Device Manager errors' has more.
6. PCI. The 'IRQ sharing' section elaborates. If you said 'USB,' you get full credit as well, because the USB bus uses a single interrupt for all connected devices.
7. Scanners and Cameras. No points if you said 'cameras and scanners.' See the 'Scanners and cameras' section.
8. <ModemName>LOG.TXT. This is sort of a trick question because <ModemName> depends on the specific modem. See 'Analog modems' for more.
9. Five. You get full credit if you said '5.' See 'Getting on the Universal Serial Bus' if you missed this detail.
10. One. You can have up to three concurrent inbound network links, but only one of the same type at the same time. 'Holding Hands' has more.
Displays, Single and Multiple
Windows XP Professional configures single displays much as Windows NT 4.0 and Windows 98 do, although DirectX support is new since NT 4.0. In the first two parts of this section, I cover the essentials, which may crop up on the exam. Things get a bit more interesting when I discuss multiple displays, in the third part of this section.
Single display technology
Notable improvements in Windows XP's core display capabilities include support for DirectX, OpenGL 2.1, and better support for Advanced Graphics Port (AGP) adapters.
DirectX marks the spot
The biggest advance that Windows XP Professional brings to single display technology on the NT technology platform is support for DirectX, specifically, DirectX 8.1. DirectX is a set of APIs (Application Program Interfaces) that Microsoft designed to provide multimedia and graphics software developers a degree of consistency across different Windows versions, and to alleviate the need for developers to know details about specific hardware playback devices within a given class.
Time Shaver The list of specific APIs is a long one: DirectSound, DirectInput (for joysticks), Direct3D, DirectDraw, DirectAnimation (for vector graphics mainly), DirectShow (formerly ActiveMovie), and so forth. Don't memorize the functions of each API - just be generally aware of their existence.
Instant Answer Test your version of DirectX (it's upgradable) and various DirectX features and functions by using the handy DXDIAG.EXE program in C:\WINDOWS\ SYSTEM32 (see Figure 8-1). The utility offers specific tests for the video-related DirectDraw and Direct3D interfaces.
Figure 8-1: Testing DirectX with the DirectX Diagnostic Tool.
Silicon Graphics developed the OpenGL language for use with its high performance workstation chips, and Windows XP supports version 2.1 of this language. To see it at work, preview any of the 3D screen savers on the Display control panel's Screen Saver tab.
Touted as a technological advance, in one sense AGP (Accelerated Graphics Port, also known as Advanced Graphics Port, supported by Windows XP and 2000) is a step backward in computer design to the days of single-purpose expansion slots. You can put anything you want into an AGP slot as long as it's an AGP video adapter. Also, you can't put an AGP video adapter onto a motherboard that doesn't have an AGP port built in.
Theoretically, AGP cards are faster than PCI cards, for at least two reasons: They don't have to deal with traffic on the shared PCI bus, and peak data rates are higher. I've seen some awfully slow AGP systems, so I suspect that here, as in certain other aspects of life, the execution is more important than the theory.
Configuring single displays
Not much is new compared to earlier versions of Windows when it comes to configuring a single display system. You still set the resolution, color depth, refresh rate (important for eye fatigue), background, colors-and-fonts scheme, and (optionally) temperature or color profile in the Display control panel. The quick way to get there: Right-click any empty space on the desktop and choose Properties.