Fifth Assignment Spring 2011 CS501
Posted on Sunday, 26 June 2011
in Spring 2011
A hard drive has 4 surfaces, with 512 tracks per surface and constant 64 sectors per track. Sector size is 2K byte. The average seek time is 3 ms, the drive runs at 3,600 rpm.
- What is the drive capacity? (5)
- What is average access time for the drive? (5)
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Fourth 4th Assignment Spring 2011 CS501
Posted on Sunday, 26 June 2011
in Spring 2011
An I/O device transfers data at a rate of 5MB/s over a 100MB/s bus. The data is transferred in 2KB blocks. If the processor operates at 500MHz, and it takes a total of 5000 cycles to handle each DMA request, find the fraction of CPU time handling the data transfer with and without DMA.
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Spring 2011 CS501 3
Posted on Friday, 03 June 2011
in Spring 2011
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.
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Spring 2011 CS501 2
Posted on Thursday, 28 April 2011
in Spring 2011
Question No: 1
Specify the condition for the branch instruction and the status of the PC after the branch instruction executes with a true branch condition.
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Spring 2011 CS501 1
Posted on Monday, 11 April 2011
in Spring 2011
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Question No: 1 |
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Z= (a-b)-16(c+d)
You have to solve this equation using the following
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