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Second-Chance algorithm
When a page has been selected, we inspect its reference bit. If the value is 0, we proceed to replace this page. If the reference bit is set to 1, though, we give that page a second option and move on to select the next FIFO page.
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
Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4
describe competing process
Q. Explain about Time Sharing Systems? Time Sharing Systems Multi-programmed batched systems provide an environment where various system resources (for illustration CP
Processes and Programs Process is a dynamic entity which is a program in execution. A process is a sequence of information executions. Process exists in a limited span of t
breifly write a note on about evolution of operating system?
Define UFD and MFD. In the two-level directory structure, every user has her own user file directory (UFD). Every UFD has a similar structure, but lists only the files of a one
What is contiguous allocation? Allocation of a group of consecutive sectors for a one file.
What are batch systems? Batch systems are quite appropriate for implementing large jobs that need little interaction. The user can submit jobs and return later for the results.
explain how response time are reduced by allowing time sharing on top of multiprogramming
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