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Explain about interprocess communication The cooperating processes communicate with each other via an interprocess communication facility. IPC gives a mechanism to permit proce
Explain Deadlock Every process in a set of processes is waiting for an event which only a process in the set can cause.
Q. Polling for an I/O completion is able to waste a large number of CPU cycles if the processor iterates a busy-waiting loop several times before the I/O completes. However if the
Explain thread in details
How does user specify block to be fetched in direct access? By specifying the relative block number, relative to first block in file, which is block 0.
Explain system-wide open-file and per-process open-file The system-wide open-file table have a copy of the FCB of each open file, as well as other information. The per-pr
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 mod
What is the use of FIFOs in client-server applications
why we say " OS is a resource allocator" and “OS is a control program"?
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