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breifly write a note on about evolution of operating system?
What is a sequential file? A file that is read one record or block or parameter at a time in order, based on a tape model of a file.
What is independent process? A process is independent it cannot influence or be affected by the other processes implementing in the system. Any process does not share data with
What is preallocation? Why do it? Allocating space for a file before making the file to allow for expansion. This reserves space for a certain file so that other files can't gr
Buddy system of memory allocation Free memory is used to maintain in linked lists, each of similar sized blocks. Every block is of size 2^k. When some memory is needed by a th
Explain internal fragmentation The Internal fragmentation signifies to the result of reserving a piece of space without ever intending to use it. This space is wasted that this
Ask question #Minimum 100 difference between bounded and unbounded buffer words accepted#
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Q. If each the access rights to an object are deleted the object can no longer be accessed. At this stage the object should also be deleted and the space it occupies should be ret
justify the role played by the operating system in managing the process to avoid deadlock
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