Supporting Display Devices, I/O Devices, and ACPI in Visual Basic .NET

Drawer PDF417 in Visual Basic .NET Supporting Display Devices, I/O Devices, and ACPI

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Supporting Display Devices, I/O Devices, and ACPI
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itself. If you find that a USB device connected to an unpowered USB hub is not working as expected, try replacing the unpowered USB hub with a self-powered hub.
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If a user is experiencing intermittent display problems, such as garbled text, prob lems with the mouse pointer, or more severe problems, troubleshoot by reducing the level of hardware acceleration.
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Advanced Configuration and Power Interface (ACPI) An open industry specifica tion that defines power management on a wide range of mobile, desktop, and server computers and peripherals. ACPI provides for the OnNow industry initia tive that allows computer manufacturers to configure a computer that will start at the touch of a keyboard. ACPI design is essential to taking full advantage of power management and Plug and Play. Advanced Power Management (APM) An advanced Plug and Play that is designed to support battery status, suspend, resume, and autohibernate functions. universal serial bus (USB) An external serial bus developed to provide a fast, flex ible method of attaching up to 127 peripheral devices to a computer.
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Questions and Answers 7-33
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Lesson 1 Review
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1. How many monitors can you configure to work with Windows XP simultaneously
Windows XP supports up to ten monitors, each capable of using a different resolution and color quality.
2. A user tells you that he has recently installed a new video adapter. He downloaded what he thought were the most recent drivers for the device from a website, but he came to realize that the drivers he downloaded were not from the manufacturer of the device. He was able to install the drivers, but when he restarted Windows, the display was garbled and he cannot adjust any settings. What should you tell the user to do
You should tell the user to press the F8 key just before the operating system loads to access the Advanced Boot Options menu. He should select the Enable VGA Mode option so that Windows boots using standard VGA drivers. After Windows starts, the user should be able to remove the questionable drivers, download the appropriate drivers, and install them.
Lesson 2 Review
Page 7-20
1. What is the first step associated with troubleshooting USB problems
The first step in troubleshooting USB problems is to check the CMOS setup screens to make sure that the USB function is enabled there.
2. You receive a call from a user who is having trouble installing a scanner on her computer running Windows XP. She disconnected her printer from the computer s parallel port and connected the scanner in its place. She then turned the scanner on and ran the Add Hardware Wizard. She thinks that Windows XP did detect the scanner, but she received a number of error messages and was unable to com plete the installation. She downloaded the most recent drivers for the scanner from the manufacturer s website, which claimed that they support Windows XP, and tried the Add Hardware Wizard again, but got the same results. What is the likely problem A. She must log on to the computer with administrator privileges to install hardware devices that are not Plug and Play. B. The scanner is not compatible with Windows XP. C. The parallel cable is damaged. D. The scanner is not working.
Answer A is correct. Windows XP installs Plug and Play devices automatically, so an adminis trator does not need to be logged on to the computer. However, a user must have administra tor privileges to install non Plug and Play devices. Answer B is not correct because the
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Supporting Display Devices, I/O Devices, and ACPI
downloaded drivers do support Windows XP. Answer C is not correct because if the parallel cable were damaged, the user would also have had problems with her printer. Answer D is not correct because the scanner is working; the Add Hardware Wizard was able to detect it.
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