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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.
a summary of what operating system do
Problem: a) Define the term ‘process' and what are the different constituents of a process. b) In the three-state process model, what does each of the three states signify?
50 peripharal device name ,diagram and uses
Define the OS/2 threads code The sample program in Listing is very similar to the NetWare example. OS/2 commands are substituted for the pseudocode commands controlling thread
What are the advantages of Indexed allocation? The benefits are a. No external-fragmentation problem b. Solves the size-declaration problems. c. Supports direct access
Explain the difference between internal and external fragmentation. Internal Fragmentation is the area in a region or a page that is not used by the job occupying that region o
. Nested Macro calls are expanded using the
Q. To build a vigorous distributed system you must know what kinds of failures can occur. a. List three possible kinds of failure in a distributed system. b. State which of
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Consider a demand-paging system with the following time-measured utilizations: CPU utilization: 10%, Paging disk: 98%, Other I/O devices: 5%. What does this imply? How to improv
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