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Posted By: Girish Patil Member Level: Diamond Posted Date: 31 May 2008
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2006 ICFAI University B.E Computer Architecture Question paper
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Database Management System
Paper Code : ETCS – 309
Note : Attempt any 3 questions in all. Q1 is compulsory. Each question carries 10 marks.
Time : 11/2 Hours
Maximum Marks : 30
Computer Architecture
Q1
( a )
In a certain scientific computation it is necessary to perform the arithmetic operation (Ai + Bi)(Ci + Di) with a stream of numbers. Specify a pipeline configuration to carry out this task. List the contents of all the registers in the pipeline for i=1 to 6.
1
( b )
Give Flynn's classification Computer Architectural schemes. 4
( c ) A non-pipelined system takes 50ns to process a task. The same task can be processes in a six-segment pipeline with a clock cycle of 10ns. Determine the speedup ratio of the pipeline for 100 tasks. What is the maximum speedup that can be achieved? Also determine the efficiency of this pipeline. 3
Q2
( a )
Explain in detail the PCI bus architecture. Also discuss PCI bus arbitration.
4
( b )
What do you mean by null modem? Where is it used?
2
( c ) Briefly differentiate between CISC and RISC architectures. 4
Q3
( a )
The logical address space in a computer consists of 128 segments. Each segment can have up to 32 pages of 4K words in each. The physical memory consists of 4K page frames of 4K words in each.
1. Formulate the logical and physical address formats. (3)
2. Give the binary number of the logical address for the segment 36 and word number 2000 in page 15. (2)
( b )
What do you mean by a page fault? Briefly discuss one of the page replacement policies. 2
( c ) Discuss any two address translation schemes used in virtual memory environment. 3
Q5
Write short notes on :
10
( a )
RS-232
( b )
EISA
( c )
Device drivers
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