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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.
Define the WindowsNT WindowsNT provides a two-level approach to resource management: process and thread. The process is the uppermost level and contains most of the application
Producer-Consumer Problem Using Semaphores The Solution to producer-consumer problem use three semaphores namely- full, empty and mutex. The semaphore 'full' is utilized for
Do ratio analysis by comparing the four companies financial statements, analysis and interpretation on the four-basic group : (Refer to attachment A) Liquidity ratio Asset
What do you mean by semaphore? Semaphore : A synchronization variable that acquires on positive integer values. Invented by the Dijkstra P (semaphore): an atomic proce
Define approaches that require knowledge of the system state? Answer: Deadlock detection, Deadlock prevention, Deadlock Avoidance.
Differentiate tightly coupled systems and loosely coupled systems? Loosely coupled systems:- Every processor has its own local memory Every processor can communicate
Q. What are the major differences between capability lists and access lists? Answer: An access list is a list for each object consisting of the domains with a nonempty set of
List five services provided by an operating system. Explain how each provides convenience to the users. Explain also in which cases it would be impossible for user-level programs t
What do you mean by system calls? System calls give the interface among a process and the operating system. When a system call is implemented, it is treated as by the hardware
Briefly discuss on Bankers algorithm? The resource-allocation graph algorithm is not applicable to a resource-allocation system with multiple examples for each resource type.
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