Download JNTUH MCA 1st Year R19 2021 July-August 861AB Computer Organization And Architecture Question Paper

FirstRanker.com

Code No: 861AB

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

--- Content provided by⁠ FirstRanker.com ---

FirstRanker.com

R19

MCA I Semester Examinations, July/August - 2021

COMPUTER ORGANIZATION AND ARCHITECTURE

Time: 3 Hours Max.Marks:75

--- Content provided by⁠ FirstRanker.com ---

Answer any five questions

All questions carry equal marks

1. a) With the help of a function table and a circuit block diagram, explain how a 4 - bit arithmetic circuit works.
   b) Give examples for selective-set, selective-compliment and selective-clear operations. [7+8]
2. a) How can you say that hardwired control unit is faster than micro programmed control unit? Explain with relevant diagram. [15]

--- Content provided by‌ FirstRanker.com ---

3. a) Represent -534.72 as signed magnitude, 1’s complement, 2’s complement numbers.
   b) Explain Booth’s algorithm for multiplication. [7+8]
4. a) Why page-table is required in a virtual memory system. Explain different ways of organizing a page table.
   b) Explain how cache memory is different from virtual memory. [7+8]
5. a) Draw the four segment pipeline diagram for floating point addition and subtraction and explain the same. [15]

--- Content provided by‌ FirstRanker.com ---

6. a) Define an interrupt. What happens during the interrupt cycle? Demonstrate with the help of a flowchart and example. [15]
7. a) What are the design goals of control unit?
   b) Compare RISC and CISC instructions. Give their respective advantages and disadvantages. [7+8]
8. a) Describe the flowchart for the floating point division operation with an example.
   b) Explain arithmetic overflow and divide overflow with some examples for 2’s complement numbers. [7+8]

--- Content provided by⁠ FirstRanker.com ---

---00000---