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What is a semaphore?
A semaphore 'S' is a synchronization tool which is an integer value that, apart from initialization, is accessed only by two standard atomic operations; wait and signal .Semaphores can be used to deal with the n-process critical section problem. It can be also used to resolve various Synchronization problems.
Elimination of common sub expression during code optimization An optimizing transformation is a rule for rewriting a section of a program to enhance its execution efficiency wi
Multi-user - A multi-user Operating System permits for multiple users to use the same computer at the same time and/or different times. Below are some instances of multi-user Op
Explain in detail about ipc in linux
explain hierarchical,hashed and inverted paging
What is a sequential file? A file that is read one record or block or parameter at a time in order, based on a tape model of a file.
How can a user program disturb the normal operation of the system? a) Issuing illegal I/O operation. b) By accessing memory locations within the OS itself. c) Refusing to
Why interrupt can be used? The majority of the different parts of the PC need to send information to and from the processor and they expect to be able to get the processor's at
Explain Chaining to Handle Collision Chaining: One easy scheme is to chain all collisions in lists attached to the suitable slot. This permits an unlimited number of collision
Define busy waiting and spinlock. When a process is in its significant section, any other process that tries to enter its critical section must loop continuously in the entry c
How can the deadlock be prevented Bankers algorithm : The Resource allocation graph algorithm isn't applicable to a resource allocation system with multiple instances of every
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