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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.
Message passing system:- The function of message system is to permit processes to communicate with one another without the requirement to resort (option) to shared data. Commun
Sir i want formulas in Memory management starting from paging till the demang paging in a easy manner for solving problems in competitive exams
example of first fit best fit and worst fit
What are the various categories of software? System software Application software Engineering/Scientific software Embedded software Web Applications Artificial I
Define the OS/2 threads code The sample program in Listing is very similar to the NetWare example. OS/2 commands are substituted for the pseudocode commands controlling thread
Question: In a deadlock, processes never finish executing and system resources are tied up, preventing other jobs from starting. Deadlocks can be characterised by a set of cond
Some CPUs provide for more than two modes of operation. What are two possible uses of these multiple modes?
Q. Suppose that you want to utilize a paging algorithm that requires a reference bit (such as second-chance replacement or working-set model) however the hardware does not provide
Q. In some systems a subdirectory is able to be read and written by an authorized user just as ordinary files can be. a. Explain the protection problems that could arise. b.
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