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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 hard-disk drive reads “120 GB HDD 7200 rpm 3 GB/sec transfer rate”. If the drive has a sector size of 512 bytes, what is the average rotational latency and transfer time to read
Q. You have devised a fresh page-replacement algorithm that you think may be optimal. In a few contorted test cases Belady's anomaly occurs. Is the fresh algorithm optimal? Descr
Compare user threads and kernel threads. User threads:- User threads are supported above the kernel and are executed by a thread library at the user level. Thread creation
socket based fortune teller sever.your program should create a server that listens to a specific port when a client receives a connection the server should respond with a random fo
Utility Programs: those programs which are not the essential part of operating system. But they provide different utilities / features to the users e.g. MS-DOS : Fdisk, FORMAT, AT
how copy on write on pages when many process works at a same time?
what is the use of valid invalid bits in paging
Write a short note about context switch. Switching the CPU to another process needs saving the state of the old process and loading the saved state for the new process. This ta
LINUX OPERATING SYSTEM 1. Write a brief explanation about the Linux distribution. 2. Explain the features that Bash shell provides? 3. Who is responsible for managing use
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4 Provide two programm
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