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Explain about disk scheduling with neat diagram?
FCFS Scheduling
SCAN scheduling
C-SCAN scheduling
SSTF scheduling
LOOK Scheduling
What is meant by file management systems? File Management systems are as well referred to as simply a file system .File system is the system that an OS operating system or prog
Why is rotational latency usually not considered in disk scheduling? How would you modify SSTF, SCAN, and C-SCAN to include latency optimization? Most disks do not export their
Define swapping. A process requires being in memory to be executed. Though a process can be swapped temporarily out of memory to a backing store and then brought back into memo
What is linked allocation, as detailed in text? Directory has pointers to first and last blocks of file. Every block of file (except last) has pointer to the next block.
Q. What is the major advantage of the layered approach to system design? What are the de-merits of using the layered approach? Answer: As in all cases of modular design as well
Explain Structure The Grammar for programming language is a formal description of Structure
Q. What is the purpose of system calls? Answer: System calls permit user-level processes to request services of the operating system.
with the aid of diagrams describe the following OS structure monolithic,layered and client server.
The question of fairness, regarding page eviction, is a hard one. How do we decide what is fair? Many operating systems use global LRU, where pages from all processes are managed t
benefits of dynamic linking
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