Computer Organization And Architecture (BCS302) - AKTU Question Paper 2025-26
B.Tech · Semester 3 · Free PDF Download
This is the official AKTU Computer Organization And Architecture Previous Year Question Paper for B.Tech Semester 3, academic session 2025-26. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.
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Questions Asked in 2025-26
Computer Organization And Architecture (BCS302) — complete question paper · 70 marks · 3 Hours
- aWhat is a bus? Explain different types of buses used in a computer system
- bExplain the functional units of a digital computer system
- cExplain bus architecture and its role in interconnecting various components of a digital system
- dWhat is a register? Explain general-purpose and special-purpose registers
- eExplain the wo rking of carry look -ahead adder with the help of an example
- fExplain signed number multiplication using Booth’s Algorithm . Multiply A × B where A= –5 and B=3 using Booth’s Algorithm
- gExplain floating-point representation and its components
- aMultiply the following numbers using Array Multiplier technique
- bExplain the design of an Arithmetic and Logic Unit .Describe various arithmetic and logical operations performed by ALU
- cExplain floating point arithmetic operations. Perform floating point addition using IEEE 754 format for (5.75)₁₀ + (–2.5)₁₀
- dExplain different types of instructions. Explain various instruction formats with suitable examples
- eExplain the concept of RISC arc hitecture. Discuss its features and advantages. Compare RISC with CISC architecture
- aExplain instruction pipelining. A pipeline has 5 stages and each stage takes i. Calculate the time required to execute 10 instructions without pipelining. ii. Calculate the execution time with pipelining. iii. Find the speedup
- bExplain the design and working of a hardwired control unit. Discuss about its advantages and disadvantages
- aWhat are micro-operations? Explain different types of micro-operations
- bExplain the memory hierarchy with diagram .A memory chip has a capacity of 64K × 8. i. Find the number of address lines required. ii. How many such chips are needed to design a 256K × 16 memory system?
- aExplain the following cache mapping techniques: i. Direct Mapping ii. Associative Mapping iii. Set-Associative Mapping
- bExplain 2D and 2½D memory organization. Write their advantages and disadvantages
- aWhat is an I/O interface? Explain its functions. Why is an interface required between CPU and I/O devices?
- bDefine and differentiate synchronous and asynchronous communication with example
- aExplain the concept of interrupts. Describe interrupt hardware and explain different types of interrupts
- bExplain the working of Direct Memory Access . Describe the DMA controller and its advantages over other I/O methods
Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.
Repeated Questions — BCS302
Questions that appeared in more than one session, found by comparing 3 years of Computer Organization And Architecture papers (2023-24, 2024-25, 2025-26)
What is a bus? Explain different types of buses used in a computer system
Appeared in: 2023-24 · 2025-26
Explain the functional units of a digital computer system
Appeared in: 2024-25 · 2025-26
Explain floating-point representation and its components
Appeared in: 2024-25 · 2025-26
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