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Fault tolerance:
Machine failures, Communication faults, storage device crashes, and decays of storage media must be tolerated by the system to some extent. A fault tolerant system must continue to function perhaps with degraded form when these failures are encountered. The degradation is able to be either in performance or functionality or both. Mainly commercial systems provide only limited fault tolerance. Though, fault tolerant systems are hard to execute. In the DEC VAX cluster multiple computers are permissible to share a set of disks. If a system crashes, users are able to still their information from another system. However, if a disk fails after that all the systems will lose access.
Logical File System Responsible for providing the before discussed interface to the user including: File access. Directory operations. Security and protection.
As we have discussed, page tables map virtual page addresses to physical page addresses. One of the advantages of using virtual addresses is that we can achieve complete separation
Explain in detail about ipc in linux
WHAT ARE THE ADVANTAGES AND DISADVANTAGES OF DUAL MODE OPERATION OF OPERATING SYSTEM>?
What is the basic approach of page replacement? If no frame is free is available, find one that is not presently being used and free it. A frame can be freed by writing its con
What are the different thread levels? There are two broad type of thread implementation: User-Level Threads -- Thread Libraries. Kernel-level Threads -- System Calls.
This exercise uses a graph-plotting program ( gnuplot ) to convert tabular data into an image. This is a technique that is very widely used to visualize scientific data; with app
Enhanced Second chance algorithm In this a modify bit is as well used. Now if the ordered pair of reference and modify is (0,0) neither recently used nor modified - the best
What is the benefits OS co-operating process? Information sharing. Computation speeds up. Modularity. Convenience.
Define properties of Time sharing operating system Time sharing:- T his systems uses CPU scheduling and multiprogramming to provide economical interactive use of a system. The
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