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The optimal replacement policy, called OPT, is to evict the page which will be accessed farthest into the future. Since we can't predict the future precisely, we can't implement OPT in any real system. We can, however, run OPT on a saved trace of memory accesses, to measure how our real algorithm compares with OPT for a given trace.
What is a file? A named collection of related data explained by the creator, recorded on secondary storage.
address binding at load time
Define UNIX device driver The UNIX device driver is structured into two halves called top half and bottom half
WHAT IS ACYCLIC GRAPH DIRECTORY
List three ways of allocating storage, and give advantages of each. a. Contiguous allocation. Fastest, if no changes are to be made. Also simplest for random access files. b
What makes a Just-in-Time inventory system differ from a traditional inventory system?
why some companies do not pay sufficient attention to staff induction
How Virtual memory is implemented Virtual memory can be implemented along with Segmentation and Paging
Define Segmentation The memory allocation method subject to “external” fragmentation is Segmentation.
Q. How Program execute in operating system? Program execution- The operating system fills the contents (or sections) of a file into memory as well as begins its execution. A us
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