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What is a file?
A named collection of related data explained by the creator, recorded on secondary storage.
The Most comman difference are given below System calls are heavy. While a procedure call can generally be performed in a few system instructions, a system call needs the c
Define the WindowsNT WindowsNT provides a two-level approach to resource management: process and thread. The process is the uppermost level and contains most of the application
what is instant messaging used for
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Define ‘LRU’ page replacement policy LRU is Least Recently Used page replacement policy.
Define the “Throughput” of a system Throughput is Number of programs processed by it per unit time
what is Number System
How many disk operations are needed to fetch the i-node for the file /usr/ast/courses/os/handout.t? Assume that the i-node for the root directory is in memory, but nothing else alo
What is reference string We evaluate an algorithm by running it on a definite string of memory reference and computing the number of page faults. The string of memory reference
Assume that P A , P B and P C are three distinguished program s . When P A is executed, it needs 10 ticks to complete its execution and it forks new processes executing P B at tick
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