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Linked allocation
With linked allocation, every file is a linked list of disk blocks; the disk blocks might be scattered anywhere on the disk. The directory has a pointer to the first and last blocks of the file.
What is graceful degradation? In multiprocessor systems, failure of single processor will not halt the system, but only slow it down by sharing the work of failure system by ot
What is the benefits OS co-operating process? Information sharing. Computation speeds up. Modularity. Convenience.
Define a program in execution is known as A program in execution is known as a process
Q. Explain Message passing among systems? Communications- Message passing among systems requires messages to be turned into packets of information and sent to the network contr
Processes- Making the System More Responsive and Useful A method by definition build up of a code execution and resource ownership. A process has two main characteristics, code
Write about critical regions and monitors. Critical region definition Monitor definition Implementation of the conditional-region construct Syntax of monitor Monito
Central to implementation of a modern memory management system is the page replacement algorithm. Modern virtual memory systems break memory up into pages and map (via a page table
What is scheduler? A process migrates among the various scheduling queues throughout its life time. The OS must choose processes from these queues in some fashion. This selecti
Q. Explain about Functions of Operating System? Functions of Operating System Operating system performs 3 functions as follows: 1. Convenience: Operating System mak
Short term scheduling The short term scheduler as well known as the dispatcher executes most frequently and makes the fine grained decision of which process to execute next. Th
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