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What is a file path name? A list of the subdirectories, directories, and files we must traverse to reach a file from the root directory.
Processes have valid and invalid entries on their page tables. The valid entries all point to some where "real" (e.g. a physical page, or some portion of disk in case of non-reside
Indexed allocation Indexed allocation bringing all the pointers together into one location: the index block. Every file has its own index block, which is an array of disk-block
Direct memory access Many computers avoid burdening the main CPU with programmed I/O by offloading sine if this work to a special-purpose processor known as a direct memory add
Q. Does Windows XP offer any user-mode processes that enable it to run programs developed for other operating systems? Describe two of these subsystems. Answer: Environmental
Buffering Messages exchanged by communication processes reside in a impermanent queue. Such a queue can be executed in three ways. Zero capacity: The queue length is 0.
Several schemes available are as follows: Pipes : One-way communication process through which different process can interact. The problem is that the two processes could have
Android operating system is an open source, Linux-based Smartphone OS. It is the world's most popular mobile platform with more than 700,000 applications and 25 billion downlo
Q. What is the purpose of system calls? Answer: System calls permit user-level processes to request services of the operating system.
Q. Describes responsibilities of the I/O manager? Answer: The I/O manager is responsible for file systems and device drivers and network drivers. The I/O manager keeps follow
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