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JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
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MCA I Semester Examinations, October/ November - 2020
COMPUTER ORGANIZATION AND ARCHITECTURE
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Time: 2 Hours
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Max.Marks:75Answer any five questions
All questions carry equal marks
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1.a)
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Draw a 4-bit adder-subtractor circuit diagram and explain its functional description.
b)
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Give the Register Transfer Level (RTL) statements for Push and Pop operations. [7+8]2.
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With suitable block diagram, explain the working of a micro programmed sequencer.--- Content provided by FirstRanker.com ---
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[15]
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3.a)
Represent -424.19 as signed magnitude, 1's complement, 2's complement numbers.
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usedb)
Draw a flow chart to explain floating point multiplication with an example.
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[7+8]
4.a)
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Explain DMA based data transfer. Give the respective block diagram of it.
b)
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Compare isolated I/O and memory-mapped I/O.--- Content provided by FirstRanker.com ---
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[7+8]5.a) What are the characteristics of a Multiprocessors?
b)
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Discuss about serial arbitration and parallel arbitration with relevant diagrams.
[7+8]
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6.
List and explain various memory-reference and register-reference instructions with
clear examples.
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[15]
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7.a)What is the role of symbolic microprogram and binary microprogram in micro
programmed control?
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b) Give an example to illustrate zero-address, one-address and two-address instructions.--- Content provided by FirstRanker.com ---
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[7+8]
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8.a)
Multiply 10111 with 10011 using Booth's algorithm.
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b)
Describe the hardware for signed 2's complement addition and subtraction?
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