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Short term scheduling
The short term scheduler as well known as the dispatcher executes most frequently and makes the fine grained decision of which process to execute next. The short term scheduler is appeal to whenever an event occurs that may lead to the suspension of the current process or that may provide an opportunity to preempt a currently running process in favor of another. Illustration include IO interrupts, clock interrupts, operating system calls and signals
Assume there are only 4 page frames in the physical memory, for the following reference string: 1, 2, 3, 4, 5, 3, 4, 1, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 4, 5, 4, 2, 8. a) What i
Performance of demand paging Demand paging can have an important effect on the performance of a computer system. As long as there are no page faults, the effective access time
how to differentiate scheduling algorithms?
What are the various file operations? The six basic file operations are Creating a file Reading a file Writing a file Repositioning within a file Tr
Explain how protection is provided for the hardware resources by the operating system. Dual mode operation Sharing system resources needs operating system to make sure
The swapper work s on the biggest scheduling priority. Initially it will look for any sleeping process, if not get then it will see for the ready-to-run process for swapping. Bu
Why is it not possible to enforce memory protection at compile time? Every process should be protected against unwanted interference by other process, whether intentional or
Central to implementation of a modern memory management system is the page replacement algorithm. Modern virtual memory systems break memory up into pages and map (via a page table
Explain the various types of computer systems. Mainframe systems Large Number of CPU with Greatest Processing Power: Huge Memory Capacity: Increased Performance by s
what is multilevel page table and its applications?
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