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Define FIFO Page Replacement Algorithm
This policy simply eliminates pages in the order they arrived in the main memory. By using this policy we simply remove a page based upon the time of its arrival in the memory. For instance if we comprise the reference string that is: 1, 2, 3, 4, 1, 2, 5, 1, 2, 3, 4, 5 and 3 frames (3 pages can be in memory at a time per process) after that we have 9 page faults as shown
What are the benefits of thread pools:- The benefits of thread pools are 1. It is usually faster to service a request with an existing thread than waiting to make a thread.
System Service Program system service program Supports and provides the services for other program. System service program perform Varity of tasks. They are further divided in
A set of methods that allow executing a program which is not completely in memory is called A set of methods that allow executing a program which is not completely in memory
What is process control block? Every process is represented in the OS by a process control block. It has many pieces of information associated with an exact process.
General Graph Directory A serious trouble with using an acyclic graph structure is making sure that there are no cycles. When links are further added to an existing tree struc
What is the benefits OS co-operating process? Information sharing. Computation speeds up. Modularity. Convenience.
examples of independent process
What is Demand paging? Virtual memory is commonly executed by demand paging. In demand paging, the pager brings only those essential pages into memory instead of swapping in a
Question 3: (a) Fincorp Ltd is an insurance company wishing to change over to a better business system using an improved version of a financial information system (FIS). The direc
___paging fecthces a page only when needed
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