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An operating system provides the environment within that programs are executed. Internally operating systems differ greatly in their makeup because they are organized along many different lines. Design of a new operating system is amajor task. It is essential that goals of the system be well defined before design begins.
We can view an operating system from many vantage points. One view emphases on the services which the system provides, another on the interface which it makes available to users and programmers and a third on its components and their interconnections.
Q. The term "fast wide SCSI-II" signifies a SCSI bus that operates at a data rate of 20 megabytes per second when it moves a packet of bytes among the host and a device. Presume t
Q. How would utilize of a RAM disk affect your selection of a disk-scheduling algorithm? What factors would you require to consider? Do the similar considerations apply to hard-di
What is external fragmentation? As process are removed from and loaded to the memory free memory space is bracken into pieces .external fragmentation take place when enough mem
Determine what the expansion of nested macro calls follows The expansion of nested macro calls follows the Last in First out (LIFO) rule.
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
explain how indefinite blocking or starvation occurs..
The producer-consumermodel above has a standard human analogy of an assembly line. Humans have specialized skills, however, whereas threads running the same program do not need to
how the system call is work?
Basic concepts When a process is to be changed in, the pager guesses which pages will be used before the process is changed out again. Instead of swapping in a entire process,
What criteria are important in choosing a file organisation?
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