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Q. Under what conditions do page faults occur? Explain the actions taken by the operating system when a page fault occurs.
Answer: A page fault take places when an access to a page that has not been brought into main memory takes place. The operating system authenticates the memory access aborting the program if it is invalid. If it is valid a free frame is located as well as I/O is requested to read the needed page into the free frame. Upon completion of I/O the process table as well as page table are updated and the instruction is restarted.
What is a multiprocessing system? Multiprocessor systems are those systems that use additional than a single processor for program execution. It is done for raising the executi
Essential Properties of Operating System 1. Batch: Jobs with similar needs are batched together and run through the computer as a group by an operator or automatic job sequen
Q. Explain some of the ways an application can use memory via the Win32 API. Answer: (1) Virtual memory offers several functions that allow an application to reserve and rele
Placement algorithms :calculate where in available real-memory to execute a program. Common functions are next-fit, first-fit, and best-fit. Replacement algorithms :are
Define properties of Time sharing operating system Time sharing:- T his systems uses CPU scheduling and multiprogramming to provide economical interactive use of a system. The
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A working Ubuntu Linux operating system. You can use a Live-CD to complete this assignment. Create an empty text file named assignment6.txt in your home directory. Edit this
Q. What is the basic function of Assembler ? Input to an assembler is an assembly language program. Output is an object program and information which enables the loader to prep
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
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