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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 processes to communicate and to synchronize their actions without sharing the similar address space.
Applications allocate memory in terms of the number of bytes that they need, but this level of granularity is too ?ne-grained for the operating system to manage the system memory i
Q. Likewise some systems support many types of structures for a file's data while others simply support a stream of bytes. What are the merits in addition to demerits? Answer:
Locality of reference entails that the page reference being made by a process Locality of reference entails that the page reference being made by a process is similarly to be
case study:interprocess communication
What are the use of job queues, ready queues and device queues? As a process enters a system they are put in to a job queue. These queues having of all jobs in the system. The
Which are the different states of a process? Different status of a process is: New: When the process is created. Running: When instructions are executed. Wait
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
The physical memory acts as a cache backed by the disk. When the physical memory is full, and we want to read in another page from disk, we have to evict a page from physical memor
What is virtual memory? Virtual memory is a method that allows the execution of processes that might not be completely in memory. It is the separation of user logical memory fr
While it is hard to resolve a deadlock which has been detected, fortunately it is fairly easy to prevent deadlocks from ever happening. The key is that the conditions above for dea
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