Download JNTUH MCA 1st Sem R15 2021 July-August 821AB Computer Organization Question Paper

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Code No: 821AB R15

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

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Answer any five questions
All questions carry equal marks

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1. a) Apply Booth’s algorithm to multiply 10101 with 10010.
   b) Convert the following decimal numbers to binary and octal:
   i) 2315 ii) 517 [7+8]
2. Draw the block diagram of content addressable memory and explain the logic of read and write operations. [15]
3. Give an example for illustrating Indexed and Base register addressing modes. Explain various arithmetic instructions of 8086 processor. [7+8]

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4. Describe the functionality and need of DMA controller. [15]
5. Draw the four-segment instruction pipeline flowchart and timing diagram. Explain the same. [15]
6. Depict the flowchart for adding and subtracting numbers in signed-2’s complement notation and explain the same with an example. [15]
7. a) What is the need of cache memory? Explain its characteristics.
   b) Consider a 2-way set associative cache with 64 blocks and a block size of 16 bytes. To which set number does byte address 1200 map? [7+8]

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8. List and explain various interrupts and process control instructions with examples for each. [15]

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