CS252/Culler Lec 5.12 2/5/02 Virtual Memory has own terminology Each process has its own private virtual address space (e.g., 2 32 Bytes); CPU actually generates virtual addresses Each computer has a physical address space (e.g., 128 MegaBytes DRAM); also called real memory Address translation: mapping virtual addresses to physical addresses –Allows multiple programs to use (different chunks of physical) memory at same time –Also allows some chunks of virtual memory to be represented on disk, not in main memory (to exploit memory hierarchy)
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