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Q. Why is it complicated to protect a system in which users are allowed to do their own I/O?
Answer: In earlier chapters we identified a distinction among kernel and user mode where kernel mode is utilized for carrying out privileged operations such as I/O. One reason why I/O should be performed in kernel mode is that I/O requires accessing the hardware as well as proper access to the hardware is necessary for system integrity. If we permit users to perform their own I/O we can't guarantee system integrity.
What is contiguous allocation? Allocation of a group of consecutive sectors for a one file.
What are the benefits of multithreaded programming? The advantages of multithreaded programming can be broken down into four main categories: Responsiveness Resourc
Assume that P A , P B and P C are three distinguished program s . When P A is executed, it needs 10 ticks to complete its execution and it forks new processes executing P B at tick
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Ask question #Minimum 100 words accepted application of bounded and unbounded buffers
What are the benefits of thread pools:- The benefits of thread pools are 1. It is usually faster to service a request with an existing thread than waiting to make a thread.
When a computer is started on, the program that executed first is named the ''operating system.'' It controls pretty much all applications in the computer. This adds who logs in, h
Explain the Request/Response Interface Many issues are involved in providing a procedural interface for client functions to interact with server components. First off, since
What components of the R/e system initiate the start of background jobs at the specified time? The batch scheduler initiates the begin of background job. The dispatcher then s
What is the use of FIFOs in client-server applications
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