MCASemester 12024-25Computer Organization ArchitectureKCA105

Computer Organization Architecture (KCA105) - AKTU Question Paper 2024-25

MCA · Semester 1 · Free PDF Download

This is the official AKTU Computer Organization Architecture Previous Year Question Paper for MCA Semester 1, academic session 2024-25. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:MCA

Semester:Semester 1

Session:2024-25

University:AKTU / UPTU

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Questions Asked in 2024-25

Computer Organization Architecture (KCA105) — complete question paper · 100 marks · 3 Hours

Section AAttempt all questions in brief. 2 x 10 = 20

a
Compare the various addressing modes used in processor organization. 1 K2, K3
b
How does bus width affect data transfer rates? 1 K2, K3
c
Analyze the process of floating-point division and describe th e challenges involved in implemen ting floating-poi nt arithmetic i n hardware
d
Explain the architecture of an ALU. 2 K2, K4
e
Apply the principles of instruction pipelining and identify ha zards that can occur in a pipeline
f
Apply the concept of micro-operations in program control. Expl ain how control signals govern their execution
g
Explain the trade-offs between speed, cost, and capacity. 4 K2, K3
h
Analyze the impact of cache memory on processor performance. 4 K2, K3 i. Explain Direct Memory Access. 5 K1, K2 j. Explain synchronous and async hronous serial communication. 5 K1, K2

Section BAttempt any three of the following: 10 x 3 = 30

a
Explain the role of functional units. How do these units int eract using system buses, and what are the different types of bus architectures used in modern computers?
b
Explain how floating-point num bers are represented, normalized, and rounded, and discuss the implications of precision errors in scientific computations
c
Apply the concept of Reduced Instruction Set Computer and Co mplex Instruction Set Computer. Compare their architectural differenc es and analyze their impact on performance and power consumption
d
Explain the design and perform ance considerations of cache m emory. How do replacement policies affect cache performance?
e
Analyze standard communicati on interfaces. How do these inte rfaces impact data transfer speed and system performance?

Section CAttempt any one part of the following: 10 x 1 = 10

a
Understand the concept of bus arbitration and compare differ ent bus arbitration techniques. How do these techniques impact system performance in multiprocessor environments?
b
Remember the different types of registers in a processor and explain their specific functions. How does the use of general-purpose a nd special-purpose registers improve computational efficiency?
a
Explain the concept of look-ahead carry adders and analyze h ow they improve addition speed compared t o ripple carry adders. Explain their working principle with an example
b
Analyze Booth’s algorithm for signed operand multiplication. Provide a step-by-step example of multiplying two signed binary numbers u sing Booth’s algorithm and explain ho w it optimizes the multiplicati on process
a
Apply the concept of instruction cycles and sub-cycles to ex plain the complete execution of an instruction in a processor. How does instruction pipelini ng improve the efficiency of execution? Pro vide a detailed example
b
Apply the differences between hardwired and microprogrammed control units. Design a simple m icroprogrammed control unit and explain how microinstructions are sequenced and executed
a
Make use of the concept of virtual memory and explain how it i s implemented using paging and segmentation. Discuss the role of the Memory Management Unit in address translation
b
Compare and contrast the diffe rences between various types o f secondary and auxiliary storage devices. How do advancements in storage technology impact computing performance?
a
Explain the different types o f I/O interfaces and their role in computer architecture. Explain how memory-mapped I/O differs from isolated I/O and discuss their advantages and disadvantages
b
Analyze the different types of interrupts and their role in handling external and internal events in a computer system. How does int errupt priority affect system performance?

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.

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