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Q. Why is rotational latency typically not considered in disk scheduling? How would you alter SSTF, SCAN and C-SCAN to comprise latency optimization?
Answer: Most disks don't export their rotational position information to the host. Even if they did and the time for this information to reach the scheduler would be subject to imprecision and the time consumed by the scheduler is variable therefore the rotational position information would become incorrect. Additional the disk requests are typically given in terms of logical block numbers as well as the mapping between logical blocks and physical locations is very complex.
What are the operations of processes? Process creation A process may create several new processes. The creating process is called as parent process, where as the new proce
Define buffering. A buffer is a memory area that keeps data whereas they are transferred among two devices or among a device and an application. Buffering is done for three rea
Q. Capability lists are typically kept within the address space of the user. How does the system make sure that the user cannot modify the contents of the list? Answer: An ap
Discuss difference between symmetric and asymmetric multiprocessing Symmetric multiprocessing (SMP), in which every processor runs an identical copy of the operating system an
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
Now let's implement bounded producer-consumer with semaphores, a Coke machine which is initially empty: semaphore sem_mutex = 1 // binary semaphore for mutual exclusion, 1==unlo
a summary of what operating system do
Can you please explain in easy words how input output protection works
Explain Structure The Grammar for programming language is a formal description of Structure
Define Enforcing Modularity for C Additionally, in C it is sometimes necessary to create modularity of design. C++ is very natural model for component based application design
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