Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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 task is recognized as a context switch. The context of a process is symbolize in the PCB of a process it includes the value of the process state, CPU registers, and memory-management information. When a context switch takes place, the kernel accumulates the context of the old process in its PCB and loads the saved context of the new process scheduled to run. Context-switch time is pure overhead for the reason that to machine depending on the memory speed the number of registers that have to be copied, and the subsistence of special instructions. Usual speed range from 1 to 1000 microseconds. Context-switch times are extremely dependent on hardware support.
Can a direct access file be read sequentially? Explain. Yes. Keep a counter, cp, initially set to 0. After reading record cp, increment cp.
explain about oprating system services and topics briefly
Explain the Alphabet and String A finite set of symbols is known as alphabet. An alphabet is frequently denoted by sigma, yet can be given any name. B = {0, 1} says B is an
What is virtual memory? Virtual memory is a method that allows the execution of processes that might not be completely in memory. It is the separation of user logical memory fr
How the Nested Macro calls are expanded LIFO (Last in First out)
what is network operating? explain about it design issues?
What are the objectives of operating system? Objectives of OS 1. Convenience: An OS makes a computer more suitable to use. 2. Efficiency : An OS allows t
Define deadlock prevention. Deadlock prevention is a set of process for ensuring that at least one of the four essential conditions like mutual exclusion, hold and wait, no pr
What are the three main activities of an operating system in regard to secondary-storage management? a) Free-space management. b) Storage allocation. c) Disk scheduling.
UNIX systems utilized to use disk-layout optimizations based on the rotation position of disk data however modern implementations including Linux simply optimize for sequential dat
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd