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Question No 1

Marks = 10 


Let us have a 20MIPS processor, you have to calculate the percentage of time it spends in busy wait loop of a 75-character line printer, when it takes 2 msec to print a character and a total of 665 instructions require to be executed to print a 75 character line.


Suppose that two instructions are executed in the polling loop.

Question No 2



Let us assume that a program takes 400 seconds of elapsed time to execute.  Out of these 400 seconds, 320 seconds is the CPU time and the rest is I/O time. What percentage of elapsed time is spent on I/O operations?


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Replies to This Discussion

See the attached file for complete assignment of CS501 Assignment#03 Spring 2011
See the attached file for solution of CS501 Assignment#03 Spring 2011 By Sehar keep it up 
i think it is not a complete assignment answer so please check it again
Dear I think soo, it's not a complete one.
Thanks Dear


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