Explain demand paging, page fault interrupt, and trashing?
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Answer / Kumari Shashi Prabha
Demand Paging is a technique where pages are loaded into main memory only when they are needed by the CPU. Page Fault Interrupt is a signal sent by the hardware to the operating system when a required page is not found in main memory, triggering the OS's page replacement algorithm. Trashing occurs when frequent page swapping consumes more CPU cycles than actually executing processes, leading to decreased system performance.
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