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Consider a particular system that does not have an interrupting clock. The only way a thread can lose the processor is to voluntarily surrender it. Additionally, the operating system does not support a dispatcher.
a) How can a group of user threads control dispatching?
b) What advantages exist in this scheme
Under what circumstances do page faults occur? Describe the actions taken by the operating system when a page fault occurs. A page fault happens when an access to a page that
Q. What is the purpose of system calls? Answer: System calls permit user-level processes to request services of the operating system.
WHAT IS OPERATING SYSTEM ?ENLIST AND EXPLAIN BASIC SERVICES PROVIDE BY OS
Write a program (with the programming language and on the platform of your choice) to demonstrate the memory leak problem (see http://en.wikipedia.org/wiki/Memory_leak for detail
An operating system involves 3 user processes each one requiring 2 units of resource R .The minimum number of units of R like no deadlocks will ever take place is The minimum
Q. What system calls have to be implementing by a command interpreter or shell in order to start a new process? Answer: In the UNIX systems a fork system call followed by an ex
FIFO is named as 'named pipes'. FIFO (first-in-first-out) is a special file which is laid to be data transient. Once data is load from named pipe, it cannot be load again. Also, da
What are the objectives and functions of operating system? Functions of operating systems 1. It allocates the resources and acts as a supervisor. 2. It hides th
Q. Describe the purpose of the open() and close() operations. Answer: The open() operation notifies the system that the named file is about to become active. The c
Operating Systems have evolved tremendously in the last few decades. The first approach for building Operating Systems, taken during the 40s through early 60s, was to allow only on
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