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Define the difference between preemptive and nonpreemptive scheduling. State why strict nonpreemptive scheduling is unlikely to be used in a computer center.
Preemptive scheduling permits a process to be interrupted in the midst of its implementation, taking the CPU away and allocating it to another process. Nonpreemptive scheduling makes sure that a process relinquishes control of the CPU only when it finishes with its current CPU burst.
basic advantage of using interrupt initiated data transfer over transfer under program control without an interrupt
Linked list allocation using index The blocks don't have a fixed size. Pointers are utilized to point to the next block in a file. The pointers are set aside as a separate tabl
What is Instruction trace
cpu protection in linux
Q. Several CPUs provide for more than two modes of operation. What are two probable uses of these multiple modes? Answer: Although most systems merely distinguish between use
Describe swapping technique in UNIX systems. Swapping is used to control memory contention among processes. If there is excessively much memory contention, processes are swappe
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
Determine the syntax of the assembler directive EQU The following is syntax of the assembler directive EQU: EQU
What is the purpose of system calls? System calls permit user-level processes to request services of the operating system.
What is the benefits OS co-operating process? Information sharing. Computation speeds up. Modularity. Convenience.
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