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How Virtual memory is implemented
Virtual memory can be implemented along with Segmentation and Paging
System Service Program system service program Supports and provides the services for other program. System service program perform Varity of tasks. They are further divided in
Write on short note DMA. Direct M emory Access (DMA) is a technique for transferring data from main to a device without passing it through the CPU. Computers that have
Define memory management In multiprogramming system the user part of memory should be further subdivided to accommodate multiple processes. The task of subdivision is carried o
What is the main function of the memory-management unit? The runtime mapping from virtual to physical addresses is done by a hardware device known as a memory management unit (
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
Q. Benefits and Drawbacks of Batch System? Benefits of Batch System: Move much of the work of operator to computer. Increased performance as it was possible for j
File System Interface and Implementation The Nachos file system, as distributed, uses a single-level index allocation method for data allocation of files. In the current design,
What problems arise if the directory structure is a general graph? Searching for a particular file may result in searching the similar directory many times. Deletion of the fil
Computing uses three number bases:- Binary (base 2), Octal (base 8) and Hexadecimal (base 16). Binary has been described before, although various catchphrases are used to describe
Q. Does Windows XP offer any user-mode processes that enable it to run programs developed for other operating systems? Describe two of these subsystems. Answer: Environmental
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