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Enhanced second-chance algorithm.
When we increase the second-chance algorithm by considering both the reference bit and the modify bit as an order pair. We have the following four possible classes.
a) (0,0) neither recently used nor modified - best page to replace.
b) (0,1) not recently used but modified - not quite as good.
c) (1,0) recently used but clean - it probably will be used again soon.
What are the five major activities of an operating system in regard to file management? The creation and deletion of files The creation and deletion of directories The s
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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
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