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Define buffering. A buffer is a memory area that keeps data whereas they are transferred among two devices or among a device and an application. Buffering is done for three rea
What are attributes? Attributes are the one, which explains the properties of data object.
Explain how the os implements virtual memory phenomenon.
What is the use of fork and exec system calls? Fork is a system call by which a latest process is created. Exec is also a system call, which is used after a fork by one of the
What are the various categories of software? System software Application software Engineering/Scientific software Embedded software Web Applications Artificial I
Demand paging With demand paging, a page is called into memory only when a location on that page is actually indexed during run time. With pre-paging, pages other than the one
What are the main differences between operating systems for mainframe computers and personal computers? The design goals of operating systems for those machines are quite diffe
define semaphore. how can we use semaphore to deal with n-process critical section problem.
List the Coffman's conditions that lead to a deadlock. Mutual Exclusion : Only one process might be use a critical resource at a time. Hold & Wait: A process may be alloc
Discuss difference between symmetric and asymmetric multiprocessing Symmetric multiprocessing (SMP), in which every processor runs an identical copy of the operating system an
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