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COA Question Bank

This document contains questions related to computer organization and architecture. It includes questions ranging from 2 to 6 marks covering topics such as combinational logic circuits, registers, control units, RISC processors, DMA, address sequencing, status bits, instruction sets, hazards, hexadecimal conversion, arithmetic operations, memory hierarchies, pipelining, assembly language, instruction cycles, caching, and more. Additional learning materials in the form of YouTube playlists on computer organization and architecture concepts are provided.

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Chizuru Singh
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100 views2 pages

COA Question Bank

This document contains questions related to computer organization and architecture. It includes questions ranging from 2 to 6 marks covering topics such as combinational logic circuits, registers, control units, RISC processors, DMA, address sequencing, status bits, instruction sets, hazards, hexadecimal conversion, arithmetic operations, memory hierarchies, pipelining, assembly language, instruction cycles, caching, and more. Additional learning materials in the form of YouTube playlists on computer organization and architecture concepts are provided.

Uploaded by

Chizuru Singh
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Computer Organization & Architecture

Questions for 2 marks:


Q Draw the block diagram of 4-bit combinational circuit shifter
Q List out names of eight main registers of basic computer with their symbolic name
and purpose.
Q differences between hardwired control unit and microprogrammed control unit.
Q List down six major characteristics of RISC processors.
Q Briefly explain DMA.
Q What is address sequencing? Explain.
Q Enlist different status bit conditions.
Q Use BSA and BUN instruction with example and diagram.
Q Prepare flowchart of CPU-IOP communication.
Q Draw and criticize memory hierarchy in a computer system.
Q Interpret the following instructions: INP, ISZ and LDA.
Q Summarize major hazards in pipelined execution.
Q What is binary and decimal equivalent of F8 hexadecimal value?
Q What is arithmetic micro-operation?
Q List out Register for basic computer.
Q Draw and explain control unit diagram for basic computer.
Q What is address sequencing?
Q Explain register stack.
Q What is difference between direct and indirect addressing mode?

Questions for 4 marks:


Q Write Steps for two n digit numbers subtraction in base r.
Q What is RAM and ROM?
Q Explain arithmetic pipeline.
Q What is difference between two address and three address instructions?
Q Write assembly language program to subtract one number from other number.
Q Write assembly language program to add two numbers.
Q State various phases of instruction cycle.
Q handshaking in asynchronous data transfer.
Q Justify the need of cache memory in computer systems.
Q Explain how (r-1)’s complement is calculated. Calculate 9’s complement of 546700.
Q Explain register stack and memory stack.
Q Compare and contrast RISC and CISC.
Q Write about Time-shared common bus interconnection structure.
Q Differentiate between paging and segmentation techniques used in virtual memory.
Questions for 6 marks:
Q Elaborate Flynn’s classification scheme with proper diagram.
Q Demonstrate four-segment instruction pipeline in detail.
Q List and explain Memory reference instructions in detail.
Q List out modes of transfer. Formulate direct memory access technique in detail.
Q Draw the flowchart of first pass of the assembler and explain working of the same.
Q What is cache memory? Interpret direct addressing mapping with diagram.
Q Define: microinstruction; Identify different types of 16 bits instruction formats for
basic computer using figure.
Q What is the role of sequence counter (SC) in control unit? Interpret its concept with
the help of its three inputs using diagram.
Q Explain register transfer using block diagram and timing diagram.
Q Explain booth’s multiplication algorithm with example.
Q Explain any four-input output reference instruction.
Q Write a note on asynchronous data transfer.
Q Show the contents of registers E, AC, BR, QR and SC during the process of
multiplying 11111 with 10101.
Q Draw and explain working of 4-bit binary adder
Q Elaborate CPU-IOP communication.
Q Discuss multistage switching network with neat diagrams.
Q Elaborate cache coherence problem with its solutions.

Materials & Notes:

▪ https://www.youtube.com/playlist?list=PLxCzCOWd7aiHMonh3G6QNKq53C6oNX
GrX
▪ https://www.youtube.com/playlist?list=PLXj4XH7LcRfDXDRzSLv1FfZ-
SSA38SiC0

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