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Define memory management
In multiprogramming system the user part of memory should be further subdivided to accommodate multiple processes. The task of subdivision is carried out enthusiastically by the Operating systems and it is known as memory management. Efficient memory management is vital in multiprogramming system. If merely a few processor in memory, afterward for much of time all of the processor will be waiting I/O and the processor will be idle. Thus memory requires to be allocated efficiently to pack as much process in to memory as possible. Memory management de-allocates and allocates memory for every process as apart of operating system and keeps track of memory. Memory management as well selects the memory to be allocated.
Explain the concept of Reentrancy? It is a useful, memory-saving method for multiprogrammed timesharing systems. A Reentrant Procedure is one in which many users can share a si
Swapping : Whole process is moved from the swap machine to the main memory for execution. Process size must be equal or less than to the used main memory. It is easier to exe
What are the benefits of multithreaded programming? The advantages of multithreaded programming can be broken down into four main categories: Responsiveness Resourc
4. Describe priority scheduling algorithm. Consider the following set of processes. Show the order in which the algorithm will schedule these processes. Assume preemptive and non-p
Define UNIX device driver The UNIX device driver is structured into two halves called top half and bottom half
What is the Translation Lookaside Buffer (TLB) In a cached system, the base addresses of the last few referenced pages is maintained in registers known as the TLB that aids in
Optimal page replacement An optimal page replacement algorithm has the least page fault rate of all algorithms. The algorithm states that a 'replace the page that will not be
Paging full question
An analysis, which defines the syntactic structure of the source statement, is known as Syntax analysis defines the syntactic structure of the source statement
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