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Define which is not a key piece of information, stored in single page table entry, supposing pure paging and virtual memory A reference for the disk block which stores the pa
Define busy waiting and spinlock. When a process is in its significant section, any other process that tries to enter its critical section must loop continuously in the entry c
Q. In following Section we mentioned that disabling interrupts frequently could affect the system's clock. Describe why it could and how such effects could be minimized.
how does DMA increase system concurrency
What are the various page replacement algorithms used for page replacement? FIFO page replacement Optimal page replacement LRU page replacement LRU approximat
What is thrashing? It is a method in virtual memory schemes when the processor spends most of its time swapping pages, rather than implementing instructions. This is because o
Define the Main reason to encrypt a file Major reason to encrypt a file is secure it for transmission.
Utility Programs: those programs which are not the essential part of operating system. But they provide different utilities / features to the users e.g. MS-DOS : Fdisk, FORMAT, AT
Define caching. A cache is a region of fast memory that holds copies of data. Access to the cached copy is well-organized than access to the original. Caching and buffering are
Define approaches that require knowledge of the system state? Answer: Deadlock detection, Deadlock prevention, Deadlock Avoidance.
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