Computer Organization and Architecture Unit 5 – Input / Output Organization: AKTU previous year questions
31 AKTU questions from Unit 5 (Input / Output Organization) asked in 2020–2026, tagged by marks, year and topic. In short: about 30 marks of every paper come from this unit; the most asked topic is Modes of Data Transfer (13 times); 15 questions came back in a later year. The latest ones are listed below; on the page you can filter them by 2-mark or long questions, topic and repeats.
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)
- 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)
- 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)
- Describe the role of peripheral devices in a computer system and explain how they interact with the CPU through I/O interfaces and ports? (7 marks, 2025, I/O Interface & Ports)
- Explain the Direct Memory Access (DMA) techniques for data transfer? (7 marks, 2025, Modes of Data Transfer)
- In what way synchronous and asynchronous serial modes of data transfer differ? (2 marks, 2024, Serial Communication & Interfaces)
- What are the basic differences between interrupt initiated I/O and programmed I/O? Explain in detail. (7 marks, 2024, Interrupts & Exceptions)
- What do you mean by asynchronous data transfer? Explain strobe control and handshaking mechanism. (7 marks, 2024, Modes of Data Transfer)
- Explain the various modes of data transfer and discuss direct memory access mode in detail. Also explain how DMA is superior to other modes. (7 marks, 2024, Modes of Data Transfer)
Most asked Unit 5 topics
- Modes of Data Transfer – asked 13 times
- Interrupts & Exceptions – asked 6 times
- I/O Interface & Ports – asked 5 times
Unit 5 question pattern
- 2-mark questions: 9 asked in 2020–2026
- 7-mark questions: 10 asked in 2020–2026
- 10-mark questions: 12 asked in 2020–2026
- About 30 marks from Unit 5 in every paper
- 15 questions were asked again in a later year
Unit 5 questions year by year
- 2026: 4 Unit 5 questions asked (28 marks across that year's papers)
- 2025: 4 Unit 5 questions asked (23 marks across that year's papers)
- 2024: 4 Unit 5 questions asked (23 marks across that year's papers)
- 2023: 5 Unit 5 questions asked (34 marks across that year's papers)
- 2022: 5 Unit 5 questions asked (34 marks across that year's papers)
- 2021: 5 Unit 5 questions asked (34 marks across that year's papers)
- 2020: 4 Unit 5 questions asked (32 marks across that year's papers)