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Explain the ThreadSwitchWithDelay Function used in Netware
ThreadSwitchWithDelay( )
This command is used when threads are waiting for an event or resource but don't want to use semaphores for that access. The command will tell NetWare to schedule this thread on the temporarily handicapped list. Threads on this list will run only after a system-configurable amount of Run-List threads have executed. In our above example, we could replace the delay ( ) procedure with ThreadSwitchWithDelay( ).
What is the main function of the memory-management unit? The runtime mapping from virtual to physical addresses is done by a hardware device known as a memory management unit (
Synchronization can be achieved by means other than locks and condition variables. One alternative is semaphores. A semaphore is used to regulate traf?c in a critical section. A se
What is meant by context switch? Switching the CPU to another process needs saving the state of the old process and loading the saved state for the latest process. This task is
(a) Describe services of operating systems. (b) Differentiate among the short term, medium term and long term scheduling that are given by multi-tasking operating systems.
What is the use of FIFOs in client-server applications
How does user specify block to be fetched in direct access? By specifying the relative block number, relative to first block in file, which is block 0.
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
explain any four types of operating system feature and structure(design)
Enhanced Second chance algorithm In this a modify bit is as well used. Now if the ordered pair of reference and modify is (0,0) neither recently used nor modified - the best
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
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