Gujarat Technological UniversitySummer 2023 examination

GTU 3140707 Computer Organization & Architecture (COA) Summer 2023 Question Paper & PDF

B.E. · Computer Engineering · Semester 4 · Subject code 3140707
Download official PDFView PDF here
Share with your class
Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 10:30 AM – 1:00 PM
Questions
5 with internal choice
No solutions on this paper yetNeed them for your exam? Ask once. Papers that students ask for are solved first, and we aim to add them within 24 hours.

15 of 25 questions on this paper were also asked in other years. 1 more is a type of question GTU sets again with new data. Each is marked below with the years it appeared.See all 37 repeated 3140707 questions, most asked first

Q.1

14 Marks
(a)
3 marksAsked in 4 of 7 papers
Write the name of basic computer registers with their functionalities.

Also asked in Summer 2026 Q2a, Summer 2025 Q3a, Winter 2024 Q1b

(b)
4 marks
Discuss 4-bit binary adder with neat diagram.
(c)
7 marksAsked in 6 of 7 papers

Enlist various kinds of addressing modes. Explain any five of same and support your answer by taking small example.

Also asked in Summer 2026 Q3c, Winter 2025 Q3c, Summer 2025 Q3b OR, Winter 2024 Q4a, Summer 2024 Q3c

Q.2

14 Marks
(a)
3 marks
Write sequence of microoperations to execute the following instructions:
  • AND
  • STA
(b)
4 marks
Write assembly language program to subtract two numbers.
(c)
7 marksSame type asked in 2 of 7 papers

Write two address, one address and zero address instructions program for the following arithmetic expression: X = (A + B) * (C – D / E) + F * G

Also asked in Winter 2024 Q2c OR

(c)
7 marks

Assume A = + 6 and B = + 7, apply Booth algorithm for multiplying A and B. Make necessary assumptions if required.

Q.3

14 Marks
(a)
3 marksAsked in 5 of 7 papers
Explain Flynn’s classification for computers in brief.

Also asked in Summer 2026 Q5a OR, Winter 2025 Q3a, Summer 2025 Q5c OR, Summer 2024 Q3b OR

(b)
4 marksAsked in 2 of 7 papers
Draw the flowchart for first pass of assembler and explain the same in brief.

Also asked in Summer 2024 Q5c OR

(c)
7 marks
Elaborate CPU-IOP communication.
(a)
3 marksAsked in 3 of 7 papers
Explain pipeline conflicts in brief.

Also asked in Winter 2025 Q3a OR, Winter 2024 Q3a

(b)
4 marksAsked in 2 of 7 papers
Discuss three state bus buffers with neat diagram.

Also asked in Summer 2025 Q1b

(c)
7 marksAsked in 4 of 7 papers
Write a detailed note on associative memory.

Also asked in Summer 2026 Q2c, Winter 2024 Q5b OR, Summer 2024 Q4a, Summer 2024 Q4a OR

Q.4

14 Marks
(a)
3 marksAsked in 2 of 7 papers
Explain DMA in brief.

Also asked in Winter 2025 Q4b

(b)
4 marksAsked in 2 of 7 papers
Write a note on SIMD array processor.

Also asked in Winter 2024 Q3a OR

(c)
7 marks

A computer uses a memory unit with 256K words of 32 bits each. A binary instruction code is stored in one word of memory. The instruction has four parts: an indirect bit, an operation code, a register code part to specify one of 64 registers, and an address part.

1How many bits are there in operation code, the register code part and the address part?
2Draw the instruction word format and indicate the number of bits in each part.
3How many bits are there in the data and address inputs of the memory?
(a)
3 marksAsked in 2 of 7 papers
Write a brief note on memory hierarchy.

Also asked in Winter 2023 Q2c

(b)
4 marks

In certain scientific computations it is necessary to perform the arithmetic operation (Ai + Bi) * (Ci + Di) with a stream of numbers. Specify pipeline configuration to carry out this task. List the contents of all registers in the pipeline for i=1 through 4.

(c)
7 marksAsked in 2 of 7 papers
Discuss microprogrammed control organization with neat diagram.

Also asked in Summer 2024 Q2c

Q.5

14 Marks
(a)
3 marks

Perform A – B (subtract) operation for the following numbers using signed magnitude number format. (Write necessary assumptions if required) A = + 11 and B = -

(b)
4 marksAsked in 2 of 7 papers
Explain status bit conditions with neat diagram.

Also asked in Summer 2025 Q5b

(c)
7 marksAsked in 4 of 7 papers
Discuss cache coherence problem in detail.

Also asked in Winter 2025 Q5a, Winter 2024 Q5c OR, Summer 2024 Q5c

(a)
3 marks

Write the difference(s) between arithmetic shift left and logical shift left instruction. Support your answer with proper illustration.

(b)
4 marksAsked in 4 of 7 papers
State the differences between RISC and CISC.

Also asked in Winter 2025 Q2a, Summer 2025 Q5b OR, Winter 2024 Q3c

(c)
7 marksAsked in 4 of 7 papers

Explain any two types of mapping procedures when considering the organization of cache memory.

Also asked in Winter 2025 Q5c, Winter 2024 Q4c, Summer 2024 Q4c

More Computer Organization & Architecture papers

Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.

Summer 202670 marks · 5 questions
Winter 202570 marks · 5 questions
Summer 202570 marks · 5 questions
Winter 202470 marks · 5 questions

Other Semester 4 subjects

BE Computer

2140706
Numerical and Statistical Methods for Computer Engineering
2140707
Computer Organization
3140702
Operating System
3140705
Object Oriented Programming -I

Preparing with friends?

Send this paper to your class group. Every question has its own link.

About this paper

Official Gujarat Technological University (GTU) examination paper for Computer Organization & Architecture (COA) (Summer 2023, B.E. · Computer Engineering, Sem 4). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.

Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.

Download official PDF All Computer Organization & Architecture Papers (7) →Report a typo or correction
ViewDownload PDF