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The procedure for handling the page fault is as follows
1. We check the internal table to verify whether the reference was valid or invalid.
2. If the reference was invalid, we terminate the process.
3. We find a free frame.
4. We schedule a disk operation to read the wanted page into the newly allocated frame.
5. When the disk read is complete, change the internal table to indicate that the page is now in memory.
6. We start again the instruction.
explain about design issues of network operating system
What is the main advantage of multiprogramming? Multiprogramming makes efficient use of the CPU by overlapping the demands for the CPU and its I/O devices from various users. I
SSTF stands for Abbreviation of SSTF is Shortest-Seek-time-first scheduling
What are batch systems? Batch systems are quite appropriate for implementing large jobs that need little interaction. The user can submit jobs and return later for the results.
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what is difference between file descriptor and file pointer?
Define Middleware to Ease the Low-Level Protocol Burden Fortunately, many products are available today to ease the low-level protocol burden on the application programmer. Midd
Q. You have devised a fresh page-replacement algorithm that you think may be optimal. In a few contorted test cases Belady's anomaly occurs. Is the fresh algorithm optimal? Descr
Write a short note on PCB? Every process is represented in the operating system by a process control block also called a task control block. It contains more information regard
List the four steps that are essential to run a program on a completely dedicated machine. a. Reserve machine time. b. Manually load program into memory. c. Load starting
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