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Explain the ThreadSwitch function used in the netware
Since NetWare 3 and 4 are nonpreemptive environments, it may be necessary for the application developer to explicitly relinquish control of the processor. T hreadSwitch( ) tells NetWare to reschedule this thread and allocate the processor to another.
What is an I/O subsystem? The control of devices connected to the computer is a main issue while designing operating systems. Since I/O devices differ widely in their function
Assume there are only 4 page frames in the physical memory, for the following reference string: 1, 2, 3, 4, 5, 3, 4, 1, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 4, 5, 4, 2, 8. a) What i
WHAT IS OPERATING SYSTEM ?ENLIST AND EXPLAIN BASIC SERVICES PROVIDE BY OS
Q. Several CPU-scheduling algorithms are parameterized for instance the RR algorithm requires a parameter to indicate the time slice. Multilevel response queues require parameters
Describe the differences between foreground and background processing. What advantage does background processing provide? 1. Background processes typically run with little or no
A Unix shell is a shell or command-line interpreter that gives a traditional user interface for the Unix-likesystems and for Unix operating system. Users operates the operation of
What are the multithreading models? There are three models:- a) Many-to-One model b) One-to-One model c) Many-to-Many model
MEMORY MANAGEMENT USING BUDDY SUSTEM Here we are dividing the memory as powers of two as well as we are selecting the space which is smallest but large enough to hold a process
Determine a component of a process precedence sequence Process name, Sequence operator ‘;’ and Concurrency operator ‘,’
describe competing process
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