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Q. Explain about Functions of Operating System?
Functions of Operating System
Operating system performs 3 functions as follows:
1. Convenience: Operating System makes a computer more convenient to use.
2. Efficiency:Operating System allows computer system resources to be used in an efficient manner.
3. Ability to Evolve: An Operating Systemmust be constructed in such a way as to permit effective development, testing and introduction of new system functions without at the same time interfering with service.
1. On every access, mark the page with a timestamp. Whenever we need to evict a page, we search through memory for the oldest page, the least-recently used page. But we need memory
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What is the different between basic synchronization and high level synchronization
Example 1. The diagram illustrating the data structures of in-memory VFS objects and on-disk objects and their relationships on slide 24 of the lecture notes OSD.4. This diagram i
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What is the basic approach of page replacement? If no frame is free is available, find one that is not presently being used and free it. A frame can be freed by writing its con
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