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Chapter 17. Getting the Most Out of Devi... > Controlling the Device Display

Controlling the Device Display

Device Manager’s default view is by hardware type, but it also offers several other views, all of which are available on the snap-in’s View menu:

  • Devices by Connection— This view displays devices according to what they are connected to within your computer. For example, to see which devices connect to the PCI bus, on most systems you’d open the ACPI branch, and then the Microsoft ACPI-Compliant System branch, and finally the PCI Bus branch.

  • Resources by Type— This view displays devices according to the hardware resources they require. Your computer’s resources are the communications channels by which devices communicate back and forth with software. There are four types: Interrupt Request (IRQ), Input/Output (IO), Direct memory access (DMA), and Memory (a portion of the computer’s memory that’s allocated to the device and is used to store device data).

  • Resources by Connection— This view displays the computer’s allocated resources according to how they’re connected within the computer.

  • Show Hidden Devices— When you activate this command, Device Manager displays those non–Plug and Play devices that you normally don’t need to adjust or troubleshoot. It also displays nonpresent devices, which are those that have been installed but aren’t currently attached to the computer.


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