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Online Computer Terms Dictionary - P

page fault

<memory management> In a paged virtual memory system, an access to a page (block) of memory that is not currently mapped to physical memory. When a page fault occurs the operating system either fetches the page in from secondary storage (usually disk) if the access was legitimate or otherwise reports the access as illegal.



Nearby terms: paged Page Description Language Paged Memory Management Unit page fault page in pagelet page mode