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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
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What is the information associated with an open file? Various pieces of information are associated with an open file which may be: File pointer Disk location of th
What advantages are there to this two-level directory? Users are isolated from each other. Users have more freedom in choosing file names.
In modern operating systems, applications do not directly access the physical memory. Instead, they use so-called virtual memory, where each virtual address is translated to a phys
Define ‘LRU’ page replacement policy LRU is Least Recently Used page replacement policy.
Briefly explain about file system implementation? Several on-disk and in-memory structures are used to execute a file system. On disk, the file system may have information abou
What is input output operation ?
What is sector sparing is proper definition
Second chance Algorithm When the page is chosen the reference bit is checked to see whether it has been referenced before. If that is the case after that it is given a second c
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