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What are the objectives and functions of operating system? Functions of operating systems 1. It allocates the resources and acts as a supervisor. 2. It hides th
what is process creation and how to create a process
LRU page replacement In least lately used page replacement algorithm we will replace that page that hasn't been used for the longest period of time. This is similar as an opti
What is indexed allocation? Every file has its own block of pointers to the sectors of the file.
Question: a) Define the term ‘Operating System' and identify two goals of an operating system. b) What do you understand by Symmetric multiprocessing (SMP) and Asymmetr
Enhanced second-chance algorithm. When we increase the second-chance algorithm by considering both the reference bit and the modify bit as an order pair. We have the following
Define the DosSleep(ms) Function used in the os/2 DosSleep() suspends the currently executing thread for some time interval specified in the ms parameter. If a value of 0 is
Define the difference between preemptive and nonpreemptive scheduling. State why strict nonpreemptive scheduling is unlikely to be used in a computer center. Preemptive schedul
Virtual File System serves two important functions. 1. It divides file-system-generic operations from their execution by defining a clean VFS interface. 2. The VFS is based
Write a short note on disk scheduling One of the responsibities of operating system O/S is to use the hardware efficiently. Whenever a process requires I/O to or from the
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