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Virtual file systems
The file-system execution having of three major layers. The first layer is the file-system interface, based on the open, read, write and close calls and file descriptors.
Problem: a) Define the term ‘process' and what are the different constituents of a process. b) In the three-state process model, what does each of the three states signify?
Explain the Peterson's solution for the critical section problem? In Peterson's solution two variables a) flag and b) turn are used as shared variables. If the both shared vari
What are the benefits of multithreaded programming? The advantages of multithreaded programming can be broken down into four main categories: Responsiveness Resourc
Define a layer that is not of an IO management module MCS that is Management Control System is not of an IO management module
swapping technique
Deadlocks can be detected while the program is running, by running cycle detection algorithms on the graph that de?nes the current use of resources. De?ne this graph as follows:
Define the “turn-around” time of a user job Turn- around time is total time taken to execute the job.
Q. Advantages and disadvantages of multiprogramming? Advantages 1. High CPU utilization. 2. It appears that many programs are allotted CPU almost concurrently. D
Q. Describes responsibilities of the I/O manager? Answer: The I/O manager is responsible for file systems and device drivers and network drivers. The I/O manager keeps follow
Define Disadvantages of Top Down parsing of Backtracking The disadvantages of top down parsing of backtracking: (i) Semantic actions cannot be carried out while making a pr
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