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Q. What are the three main activities of an operating system in regard to memory management?
Answer:
a. Keep follows of which parts of memory are currently being used and by whom.
b. Choose which processes are to be loaded into memory when memory space becomes available.
c. Allocate as well as deallocate memory space as needed.
What is contiguous allocation? Allocation of a group of consecutive sectors for a one file.
LRU evicts the page which was last accessed the farthest into the past of any page resident in physical memory, i.e. the least-recently used page. LRU approximates OPT when the rec
Enhanced Second chance algorithm In this a modify bit is as well used. Now if the ordered pair of reference and modify is (0,0) neither recently used nor modified - the best
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Q. What is Multiprogramming? Multiprogramming When two or more programs are in memory at the same instance, sharing the processor is referred to multiprogramming opera
Explain the TlsAlloc (VOID) This function is used to allocate a TLS index.Any subsequent TLS function calls will require the handle returned from TlsAlloc to be passed. The i
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mention the three problems that mat be caused by wrong initialization and placement of wait() and signal()operations in the use of semaphore
A system consists of 10 units of resource class Ru. The resource needs of three user processes P1, P2 and P3 are like this Using Banker's algorithm, de
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