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Computer Organization and Architecture (BCS302) AKTU PYQ analysis – unit-wise weightage

We analysed 166 questions from 7 AKTU Computer Organization and Architecture papers (2020–2026). Here is how marks are spread across units and which topics keep coming back.

Computer Organization and Architecture unit-wise weightage

  • Unit 1: Introduction & Processor Organization – 27% of questions, about 27 marks per paper
  • Unit 2: Arithmetic & Logic Unit – 30% of questions, about 30 marks per paper
  • Unit 3: Control Unit & Pipelining – 32% of questions, about 32 marks per paper
  • Unit 4: Memory – 30% of questions, about 30 marks per paper
  • Unit 5: Input / Output Organization – 30% of questions, about 30 marks per paper

Most repeated Computer Organization and Architecture topics in AKTU PYQs

  • Multiplication Algorithms
  • Instruction Cycle & Micro-operations
  • Modes of Data Transfer
  • Hardwired & Microprogrammed Control
  • Buses & Bus Arbitration

Unit 1 (Introduction & Processor Organization) – top topics

  • Buses & Bus Arbitration – asked 11 times, last in 2026
  • Processor & Register Organization – asked 9 times, last in 2026
  • Functional Units & Interconnection – asked 6 times, last in 2026

Unit 2 (Arithmetic & Logic Unit) – top topics

  • Multiplication Algorithms – asked 13 times, last in 2026
  • Floating Point Arithmetic & IEEE 754 – asked 9 times, last in 2026
  • Adders & Look-Ahead Carry – asked 8 times, last in 2026

Unit 3 (Control Unit & Pipelining) – top topics

  • Instruction Cycle & Micro-operations – asked 13 times, last in 2026
  • Hardwired & Microprogrammed Control – asked 12 times, last in 2026
  • RISC & Program Control – asked 4 times, last in 2026

Unit 4 (Memory) – top topics

  • Memory Concept & Hierarchy – asked 11 times, last in 2026
  • Cache Memory – asked 10 times, last in 2026
  • Semiconductor RAM & ROM Memories – asked 7 times, last in 2026

Unit 5 (Input / Output Organization) – top topics

  • Modes of Data Transfer – asked 13 times, last in 2026
  • Interrupts & Exceptions – asked 6 times, last in 2026
  • I/O Interface & Ports – asked 5 times, last in 2026