📊 Data-Driven • 9 PYQ Papers Analysed

Score Full Marks
in COA

21CSC203J / 18CSC262J · SRM IST · Semester 3
Computer Organization & Architecture — Complete Smart Study Hub

Units Covered

PYQs Analysed

200+

Questions Mapped

Must-Know Topics

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📚 Notes & Presentations

Unit-wise lecture notes, PPTs & study material synced from Google Drive

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📈 Data-Driven Analysis

PYQ Pareto Analysis

Based on 9 exam papers. Master the 20% of topics that yield 80% of marks.

Unit 1

Number Systems & Boolean Algebra

16%

12 / 75 marks

Unit 2

Basic Computer Organization

16%

12 / 75 marks

🔥 HOT

Unit 3

Arithmetic & Control Unit

27%

20 / 75 marks

🔥 HOT

Unit 4

Memory & I/O Organization

24%

18 / 75 marks

Unit 5

Parallel Processing

17%

13 / 75 marks

🏆 Top Topics — The Pareto List

Mastering only these topics lets you score 55–65 out of 75

🌡️ Topic Frequency Heatmap

📚 Complete Study Guide

Unit-by-Unit Study Guide

Clear concepts, key formulas, worked examples, and common mistakes for each unit.

⚡ Quick Reference

Formula Cheat Sheet

All exam-critical formulas in one place. Click any card to highlight it.

🎯 Exam Strategy

Guaranteed Marks Plan

How to approach each part of the COA exam for maximum marks.

Part A

25 MCQs × 1 = 25 marks

Target: 20–23 / 25

MAR / MDR / PC register definitions 8/9
Bits to address N MB memory = log₂(N×2²⁰) 7/9
IEEE 754 single & double precision 8/9
Booth's algorithm steps (bit-pair recoding) 8/9
Cache coherence — MESI states 7/9
Hardwired vs. Microprogrammed CU 7/9
Flynn's taxonomy: SISD/SIMD/MISD/MIMD 6/9
Pipeline hazards: structural, data, control 8/9
RISC vs CISC key differences 6/9
Addressing modes (immediate, direct, indirect) 7/9

Part B

5 Questions × 8 = 40 marks

Target: 32–40 / 40

21U1/U2Number Conversion / Addressing Modes

22U2/U3Instruction Formats OR 1's/2's Complement

23U3Booth's Algorithm multiplication 🔥

24U3/U4IEEE 754 OR Cache Mapping (Direct/Set-Assoc) 🔥

25U4/U5MESI Protocol OR Pipeline Hazards

Part C

1 Question × 10 = 10 marks

Target: 8–10 / 10

Choose 1 of 2 questions. Typical options:

Q.26

Microprogrammed Control Unit with neat diagram OR Non-restoring division algorithm trace

Q.27

Cache Coherence (MESI) state diagram 🔥 OR Flynn's classification + Software Parallelism types

💡 Best pick: Booth's Algorithm (Part B) — mechanical step-by-step trace = guaranteed full marks. For Part C, draw the Microprogrammed CU diagram with clear labels.

🔮 Predicted Next Exam Topics

Based on recent patterns

✏️ Practice Zone

Solved Questions & MCQ Drill

The most-repeated solved questions from 9 years of PYQs, plus MCQ flashcards.

🃏 MCQ Flashcards — Active Recall Drill

Click A, B, C, or D to commit your answer. Get instant feedback. Track your score below.

✅ Correct: 0

❌ Wrong: 0

📊 Total: 0

✅ Final Revision Checklist

📜 Past Year Papers

Solved PYQs

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Score Full Marksin COA