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Operating Systems have evolved tremendously in the last few decades. The first approach for building Operating Systems, taken during the 40s through early 60s, was to allow only on
What is a Dispatcher? The dispatcher is the module that gives control of the CPU to the process selected by the short- term scheduler. This function includes: Switching
why we say" OS is a resource allocator" and “OS is a control program"?
Explain briefly the working of semaphore with example ? The E.W. Dijkstra (1965) abstracted the key idea of mutual exclusion in his concepts of semaphores. Definition A s
In a multiprogramming and time-sharing environment, several users share the system simultaneously. This situation can result in various security problems. a
Define seek time and latency time. The time taken by the head to move to the appropriate cylinder or track is known as seek time. Once the head is at right track, it must wait
What is macro expansion
Explain Structure The Grammar for programming language is a formal description of Structure
SSTF stands for Abbreviation of SSTF is Shortest-Seek-time-first scheduling
Explain the Resource Ownership and Control Operating systems are required to handle many different types of resources. CPU , memory, and I/O devices are some of the varied sys
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