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Explain Readers-writers problem.
Readers-writers problem: Assume that a data object (as a file or record) is to be shared between several concurrent processes. The readers are processes which are interested in only reading the content of shared data-object. Writers are the processes which may need to update (i.e. to read and write) the shared data object. No adverse effects will result, if two readers access the shared data object simultaneously. Though, if a writer and some other process (either a writer or reader) access the shared object concurrently, anomaly may arise. To make sure that these difficulties do not occur, writers are needed to have exclusive access to the shared object. Such synchronization problem is referred to as the problem of readers-writers.
Why IO devices cannot be directly be connected to the system bus? The IO devices cannot be directly linked to the system bus because i. The data transfer rate of IO device
Q. Explain Automated and Manual systems? Automated and Manual systems: The system that doesn't need human intervention is known as'Automated system'. In this system whole proce
Simulated Annealing: One way to get around the problem of local maxima, and related problems like ridges and plateaux in hill climbing is to allow the agent to go downhill to
Salient points about addressing mode are: This addressing mode is employed to initialise value of a variable. Benefit of this mode is that no extra memory accesses are
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Which scheduling policy is most suitable for a time-shared operating system? Ans. Round-Robin scheduling policy is most appropriate for a time-shared operating system.
attribute primitive
What is a microinstruction? Each word in control memory having within it a microinstruction. The microinstruction specifies one or more micro-operations for the system. A seq
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