JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech II Year COMPUTER ORGANIZATION AND ARCHITECTURE Previous Question Paper (April/May - 2023 - R18)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
What is a computer?
Answer
A computer is a programmable electronic device that accepts raw data as input, processes it according to a set of stored instructions (software), and produces meaningful information as output. It consists of hardware components such as a central processing unit, memory, and input/output devices that work together to perform arithmetic and logical operations.
Explain functionalities of CPU.
Answer
The CPU (Central Processing Unit) serves as the primary component of a computer system, responsible for executing instructions and coordinating the operations of other hardware. Its core functionalities include:
- Instruction Fetching: The CPU retrieves instructions from the main memory (RAM) based on the address stored in the Program Counter.
- Instruction Decoding: The Control Unit interprets the fetched instruction to determine the required operation, such as data movement, arithmetic calculation, or logical comparison.
- Execution: The Arithmetic Logic Unit (ALU) performs the actual data processing (arithmetic or logical operations), while the Control Unit manages the flow of data between registers and memory to complete the task.
What are different addressing modes?
Answer
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Discuss about any two types of instruction formats.
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Give an example of decimal representation.
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Explain about BCD adder.
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What is magnetic tape?
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Describe parallel priority interrupt.
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What are conditions for incoherence?
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What are CISC characteristics?
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Part B
Explain about computer design and architecture.
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What are computer registers? Explain.
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Discuss about shift microoperations in detail.
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List and explain about memory-reference instructions.
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What are shift instructions? Explain with suitable examples.
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Define control memory. Explain.
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Explain about microinstruction format in detail.
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What are RISC instructions? Explain.
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Discuss about complements in data representation.
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Explain decimal arithmetic operations with examples.
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Describe fixed-point representation in detail.
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Discuss about division algorithms with examples.
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Explain hardware organization and match logic of associative memory.
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What are various modes of transfer? Explain.
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Discuss about direct mapping and set associative mapping.
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Explain the following:
Interprocessor arbitration
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Four-segment instruction pipeline.
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Explain the following:
Interprocess communication and synchronization
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Array processors.
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