Describe the term Context Switch
Describe the term Context Switch.
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Switching the CPU to other process needs saving the state of the old process and loading the saved state for a few process. This task is termed as a context switches. Context-switch time is pure overhead, since the system does no useful work when switching. Speed of this varies from machine to machine, depending upon the memory speed and the number of registers that must be copied, existed of special instructions (like a single instruction to load or store each register).
State the term XPath?
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Give a brief introduction about the operation of your program and show that you understand the idea behind threads and mutual exclusion variable. Why do we need to use mutual exclusion to control the access of the three global variables? What is the potential p
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Explain what is meant by the Class Selector in the CSS?
Write a program that prints out 20 random cards form a standard deck of 52 cards. Make sure the program prints out different sets of cards from one run to the next.
Explain the shell variables?
Define the term Host system: It is a computer system on which a process is executed or run.
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