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Posted By: krishna mohan Member Level: Gold Posted Date: 31 May 2008
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2007 Jawaharlal Nehru Technological University B.E Electronic Instrumentation and Control computer organization Question paper
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Set No : 1
code No : R05221901
II B.Tech II Semester Supplimentary Examinations, Aug/Sep 2007
COMPUTER ORGANIZATION
(Common to Electronics & Computer Engineering and Instrumentation and
control engineering )
Time : 3 hours Max Marks : 80
Answer any 5 questions
Allquestions carry equal marks
1. a) Explain about sign magnitude and 2's complement approaches for
represents the fixed point numbers. Why 2's complement is
preferable.
b) Give means to identify whether or not an overflow has occured
in 2's complement addition or subtration operations.
Take one example for each possible situation and ezpalin .
Assume 4 bit registers.
c) Distinguish between tightly coupled microprocessors and tightly
coupled microprocessors. [16]
2. Design a circuit parallel load operation into one of the four 4-bit
registers from a bus.Mention clearly control/selection bits and
selection logic .Assume D flipflops. [16]
3. a) What are the major design considerations in microinstructions
sequencing. [8]
b) Explain about microinstruction sequencing techniques. Specially
variable format address microinstruction. [8]
4. a) How many bits are needed to store the result addition,subtraction
multiplication and division of two n-bit unsigned numbers. Prove
[8]
b) What is overflow and underflow What is the reason? If the
computer is considered as infinite system do we still have these
problems. [8]
5. Explain the following
a) Optical Disc
b) Cache Memory
c) RAID Technology [5+5+6]
6. What are the different kinds of I/O communication techniques.What
are the relative advantages and disadvantages? Compare and contrast
all techniques [16]
7. a) What is pipelining? Explain. [8]
b) Show space-timing for pipelining? Explain with an example. [8]
8. a) Explain the functioning of omega swithching network with a neat
sketch. [8]
b) In 8*8 omega switching network how many stages are there and in
each stage how many switches are there. [4]
c) How many stages and how many switches in each stage are needed
in a n*n omega switching network. [4]
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