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bootstrap
What is linked allocation, as detailed in text? Directory has pointers to first and last blocks of file. Every block of file (except last) has pointer to the next block.
justify the role played by the operating system in managing the process to avoid deadlock
why we say OS is a resource allocator and control program
FIFO page replacement This is the easiest page replacement algorithm. At this juncture the 1 st page entering is the 1 st to leave that is the oldest page leaves. To execute
What is the purpose of system calls? System calls permit user-level processes to request services of the operating system.
basic advantage of using interrupt initiated data transfer over transfer under program control without an interrupt
Some CPUs provide for more than two modes of operation. What are two possible uses of these multiple modes?
What do you mean by semaphore? Semaphore : A synchronization variable that acquires on positive integer values. Invented by the Dijkstra P (semaphore): an atomic proce
While it is hard to resolve a deadlock which has been detected, fortunately it is fairly easy to prevent deadlocks from ever happening. The key is that the conditions above for dea
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