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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. Linked allocation. No external fragmentation. File can grow without complications.
c. Indexed allocation. Supports direct access without external fragmentation.
what is MFD
Write a short note on disk structure Modern disk drives are initiate as large one dimensional array of logical blocks where the logical block is the smallest unit of transfer.
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EXPLAIN THE SCAN SHUDDULING WITH DIAGRAM
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