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What do you mean by system calls?
System calls give the interface among a process and the operating system. When a system call is implemented, it is treated as by the hardware as software interrupt.
what are the main advantages of multiprogramming
Describe Three major roles of operating systems in business computer systems
Define Virtual memory Virtual memory is employed in all major commercial operating systems
combined approaches (ULT/KLT)
what is dual mode operation
Linked list allocation: At this time the blocks are stored using linked lists. The block size require not be the same. Thus internal fragmentation is avoided. Consider
Explain about file allocation methods? The main problem in direct-access nature is how to assign space to these files so that disk space if utilized effectively and files can b
What are two differences among user-level threads and kernel-level threads? Under what circumstances is one type better than the other? (1) User-level threads are unknown by th
Q. How is the NTFS namespace planned? Explain. Answer: The NTFS namespace is prearranged as a hierarchy of directories where every directory uses a B+ tree data structure to
What is the use of multiprogramming on individual processors ? In the usual multiprocessor, which is dealing with independent or coarse-grained synchronization granularity, it i
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