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Computer Organization and Architecture Unit 5 – Input / Output Organization: important questions for AKTU

Unit 5 (Input / Output Organization) questions that AKTU repeats most often. This unit carries about 30 marks per paper. Start with the repeated questions, then the most asked topics.

Most repeated Unit 5 questions

  • Explain the working of Direct Memory Access. Describe the DMA controller and its advantages over other I/O methods. (7 marks, 2026, Modes of Data Transfer) – also asked in 2025, 2024, 2020, 2023, 2021
  • Explain the Direct Memory Access (DMA) techniques for data transfer? (7 marks, 2025, Modes of Data Transfer) – also asked in 2020, 2024, 2023, 2026
  • With a neat schematic diagram, explain about DMA controller and its mode of data transfer. (10 marks, 2023, Modes of Data Transfer) – also asked in 2021, 2020, 2025, 2026

Most important Unit 5 topic

  • Modes of Data Transfer (Unit 5: Input / Output Organization) – asked 13 times in 2020, 2021, 2022, 2023, 2024, 2025, 2026

Most asked Unit 5 topics

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

More Unit 5 previous year questions

  • What is an I/O interface? Explain its functions. Why is an interface required between CPU and I/O devices? (7 marks, 2026, I/O Interface & Ports)
  • Define and differentiate synchronous and asynchronous communication with example. (7 marks, 2026, Serial Communication & Interfaces)
  • Explain the concept of interrupts. Describe interrupt hardware and explain different types of interrupts. (7 marks, 2026, Interrupts & Exceptions)
  • Enlist the peripheral devices in a computer system? (2 marks, 2025, I/O Interface & Ports)
  • Discuss the functions and characteristics of I/O ports and their significance in facilitating data exchange between the CPU and external devices? (7 marks, 2025, I/O Interface & Ports)

Unit 5 syllabus topics

  • I/O Interface & Ports
  • Interrupts & Exceptions
  • Modes of Data Transfer
  • I/O Channels & Processors
  • Serial Communication & Interfaces