Week15 This Week Learning Outcome To Understand Device Conflicts in Device Manager Introduction The incredible acceptance and popularity of the PC largely results from the use of an open architecture An open architecture allows any manufacturer to develop new devices (e.g.,
video boards, modems, soundboards, etc) that will work in conjunction with the PC. When anew expansion
board is added to the PC, the board uses of various system resources in order to obtain CPU time and transfer data across the expansion bus. Ultimately, each board that is added to the system requires unique resources. No two devices can use the same resources—otherwise, a hardware conflict will result. Low-level software (such as device drivers and TSRs) that uses system resources can also conflict with one another during normal operation. This chapter
explains system resources, then shows you how to detect and correct conflicts that can arise in both hardware and software. Understanding System Resources The key to understanding and eliminating conflicts is to understand the importance of each system resource that is available to you. PCs provide three types of resources interrupts,
DMA
channels, and IO areas. Many controllers and network devices also utilize BIOS, which requires memory space. Do not underestimate the importance of these areas—
conflicts
can occur anywhere, and carry dire consequences fora system.
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