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Q. What is the use of system calls? Answer: System calls permit user-level processes to request services of the operating system.
What are the methods for handling deadlocks ? The technique for handling the deadlocks are: We are able to use protocol to prevent or avoid the deadlock, make sure tha
Consider a scenario of post mailbox, there are two processes named sender S and receiver R. Both processes can communicate with each other by name along with message. You need to I
What is a path name? A pathname is the path from the root by all subdirectories to a specified file. In a two-level directory structure a user name and a file name explain a pa
Question 1: a) Briefly explain each of the following terms: (i) Distributed systems. (ii) Real time systems. (iii) Multiprocessor. b) What is the impo
What is logical address space and physical address space? The set of all logical addresses formed by a program is known as a logical address space; the set of all physical addr
Write a note on semaphores A semaphore is a tool meant for synchronizing multiple processes trying to access a shared variable. That is a semaphore is used to deal with the cri
Q. Presume that you have coded the deadlock-avoidance safety algorithm as well as now have been asked to implement the deadlock-detection algorithm. Can you do thus by simply usin
Since each thread has its own processing space therefore communication between threads will need to be done through a common global variable. Since multiple threads can access the
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
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