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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.
Write a short note about context switch. Switching the CPU to another process needs saving the state of the old process and loading the saved state for the new process. This ta
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Define dynamic linking. Dynamic linking is same to dynamic loading, rather that loading being postponed unless execution time, linking is postponed. This feature is usually use
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Define race condition. When various process access and manipulate similar data concurrently, then the outcome of the execution depends on certain order in which the access take
VARIABLE PARTITIONING We can differ the partitions and change the location according to the size of the process. 50k 40k
What are the necessary conditions for deadlocks? 1. Mutual exclusion : Only one process at a time is able to use the resource. 2. Hold and wait : A process should be holdi
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what is meant by lazzy swapper
Page fault is a trap to the software gained by the hardware when a process accesses a page that is goes in the virtual address space, but not added in physical memory. In the har
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