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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
Process States A total of nine states are acknowledged by the UNIX system. They are like as follow: User running Executing
Define ‘LRU’ page replacement policy LRU is Least Recently Used page replacement policy.
Describe the purpose of the checkpoint mechanism. How habitually must checkpoints be performed? Explain how the frequency of checkpoints affects: System performance while no
Define what a macro definition consists of
Define thrashing. Thrashing is the accident of high page traffic and low CPU utilization. It is observed that the cause of thrashing is an under-commitment of memory to program
Q. Explain some of the ways an application can use memory via the Win32 API. Answer: (1) Virtual memory offers several functions that allow an application to reserve and rele
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
What is independent process? A process is independent it cannot influence or be affected by the other processes implementing in the system. Any process does not share data with
Dynamic scheduling : The number of thread in a program may be changed during the course of operation. Dynamic priority scheduling is a kind of scheduling algorithm in which the pr
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