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Q. In the IBM/370 memory protection is offered through the use of keys. A key is a 4-bit quantity every 2K block of memory has a key (the storage key) associated with it. The CPU
define semaphore. how can we use semaphore to deal with n-process critical section problem.
What are the disadvantages of swapping technique used in pre-3BSD UNIX systems? If there is excessively much memory contention, processes are swapped out until sufficient
what is hashed page tables & explain of there work & figure
Write a brief note on demand paging. A demand paging is alike to a paging system with swapping. The Processes reside on the secondary memory while we want to implement a proces
distinguish between dynamic and fixed partitioning
What is scheduler? A process migrates among the various scheduling queues throughout its life time. The OS must choose processes from these queues in some fashion. This selecti
A scheduler that selects processes from secondary storage device is known as Medium term scheduler is a scheduler that selects processes from secondary stor
How is it different from the unbounded buffer algorithm ? Explain.
Explain the different sections of a process. Entry section Critical section Exit section Remainder section Consider a system inclusive of n processe
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