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Upgrading and Repairing PCs, 21st Edition by Scott Mueller

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Chapter 6. Memory

Memory Basics

This chapter discusses memory from both a physical and a logical point of view. First, we’ll examine what memory is, where it fits into the PC architecture, and how it works. Then, we’ll look at the various types of memory, speeds, and packaging of the chips and memory modules you can buy and install.

This chapter also covers the logical layout of memory, defining the various areas of memory and their uses from the system’s point of view. Because the logical layout and uses are within the “mind” of the processor, memory mapping and logical layout remain perhaps the most difficult subjects to grasp in the PC universe. This chapter contains useful information that removes the mysteries associated with memory and ...

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