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What is the Translation Lookaside Buffer (TLB)
In a cached system, the base addresses of the last few referenced pages is maintained in registers known as the TLB that aids in faster lookup. TLB have those page-table entries that have been most recently used. Normally, every virtual memory reference causes 2 physical memory accesses- one to fetch appropriate page-table entry, and one to get the desired data. Using TLB in-among, this is reduced to just one physical memory access in cases of TLB-hit.
Logical File System Responsible for providing the before discussed interface to the user including: File access. Directory operations. Security and protection.
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what are operating system services
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with the aid of diagrams describe the following OS structure monolithic,layered and client server.
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