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Explain the various page replacement strategies. Page replacement-basic scheme with diagram Optimal page replacement LRU page replacement FIFO page replacement LRU
As we have discussed, page tables map virtual page addresses to physical page addresses. One of the advantages of using virtual addresses is that we can achieve complete separation
Define the Communications Techniques - Application interaction protocols Communications techniques are well defined. They give developer the programmatic mechanism to transf
Define the Non Monolithic Coding First off, client - server developers must adopt a new programming mindset. Much as with the shift to object - oriented design, developers sho
Q. What is the purpose of system calls? Answer: System calls permit user-level processes to request services of the operating system.
What is spooling? Spooling overlaps the I/O of single job with the computation of other jobs.
mention the three problems that mat be caused by wrong initialization and placement of wait() and signal()operations in the use of semaphore
File structure Certain files must conform to a needed structure that is understood by the operating system. The operating system may consist that an executable file has a parti
File allocation using I nodes. This method is used to decrease the size of the table in the above method. Every file will have an I-node list. Allow a file have 15 pointers a
Many early operating systems regarded processes as different timesharing users. The process abstraction is a popular way to organize concurrent programs, but it is not the only cho
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