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What are the use of job queues, ready queues and device queues?
As a process enters a system they are put in to a job queue. These queues having of all jobs in the system. The processes that are residing in main memory and are ready and waiting to implement are kept on a list called ready queue. The list of processes waiting for distinct I/O devices kept in the device queue.
Q. What is the use of system calls? Answer: System calls permit user-level processes to request services of the operating system.
What is the purpose of system calls? System calls permit user-level processes to request services of the operating system.
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