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Q. Catalogue the design goals of Windows XP.
Answer: Design goals comprise security and reliability and Windows and POSIX application compatibility with high performance and extensibility and portability and international support. (1) Reliability was supposed as a stringent requirement and included extensive driver verification facilities for catching programming faults in user-level code and a rigorous certification process for third-party drivers and applications and devices. (2) Achieving high performance necessary examination of past problem areas such as I/O performance server CPU bottlenecks as well as the scalability of multithreaded and multiprocessor environments.
FCFS (First Come, First Served) Perform operations in order requested No reordering of work queue No starvation every demand is serviced Poor performance
In this exercise we are going to use pthread()to simulate the dynamics between a warehouse, factory and retail. The factory produces product by using parts supplied by the warehou
What advantages are there to this two-level directory? Users are isolated from each other. Users have more freedom in choosing file names.
Define approaches that require knowledge of the system state? Answer: Deadlock detection, Deadlock prevention, Deadlock Avoidance.
What are overlays? To enable a process to be larger than the amount of memory allocated to it, overlays are used. The idea of overlays is to keep in memory only those instructi
Synchronization can be achieved by means other than locks and condition variables. One alternative is semaphores. A semaphore is used to regulate traf?c in a critical section. A se
What is the difference between multiprocessing and multitasking? Multi programming means implementing more than one program but here whenever the processor is idle during execu
What are the phases of background processing? Phases are:- Job Scheduling. Job Processing. Job Overview.
Q. What system calls have to be implementing by a command interpreter or shell in order to start a new process? Answer: In the UNIX systems a fork system call followed by an ex
shell program for Armstrong number
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