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Top 30 Input and Output Devices MCQs with Answers for all Competitive Exams 2026

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Top 30 Input and Output Devices MCQs with Answers for all Competitive Exams 2026

Top 30 Input and Output Devices MCQs with Answers for all Competitive Exams 2026

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Dear aspirants, this article brings you 30 important MCQs on Input and Output Devices. These questions are frequently asked in JKSSB, SSC, Banking, and other competitive exams. Try these MCQs and improve your concepts and accuracy.

Input and Output Devices MCQs

Duration: 29 minutes

Q1. Read the following statements regarding keyboard:

  1. Keyboard is an input device.
  2. QWERTY keyboard was invented by Christopher Latham Sholes.

Q2. Which key moves the cursor to the beginning of a line?

Q3. Read the following statements regarding function keys:

  1. Function keys range from F1 to F12.
  2. Function keys are used for special functions.

Q4. Which key deletes text to the left of the cursor?

Q5. Read the following statements regarding mouse:

  1. Mouse was invented by Douglas Engelbart.
  2. Left click is used to select items.

Q6. Which device uses LED and sensors for movement detection?

Q7. Read the following statements regarding trackball:

  1. Trackball has a ball on top.
  2. It is operated by rotating the ball using finger.

Q8. Which device is mainly used in video games and aircraft control?

Q9. Read the following statements regarding light pen:

  1. Light pen is a pointing device.
  2. It uses light-sensitive detection.

Q10. Which device allows input by touching screen?

Q11. Read the following statements regarding OCR:

  1. OCR converts printed text into editable form.
  2. OCR stands for Optical Character Recognition.

Q12. Which device is used in banks to read cheques?

Q13. Read the following statements regarding OMR:

  1. OMR detects marks on paper.
  2. It is used in exams for answer sheets.

Q14. Which device converts paper documents into digital form?

Q15. Read the following statements regarding microphone:

  1. Microphone converts sound into electrical signals.
  2. It is an input device.

Q16. Which is the smallest unit of display?

Q17. Read the following statements regarding monitor:

  1. Resolution determines clarity of display.
  2. Refresh rate is number of times screen refreshes per second.

Q18. Which printer uses heat to print characters?

Q19. Read the following statements regarding printers:

  1. Printer produces hard copies.
  2. PPM measures printer speed.

Q20. Which printer is also known as page printer?

Q21. Read the following statements regarding plotter:

  1. Plotter is used for large drawings.
  2. It is used for blueprints.

Q22. Which device is used to listen audio?

Q23. Read the following statements regarding UPS:

  1. UPS provides backup power.
  2. It keeps computer running during power failure.

Q24. Which port connects internet cable?

Q25. Read the following statements regarding USB port:

  1. USB supports multiple devices.
  2. It has plug and play feature.

Q26. Which port is used to connect projector?

Q27. Read the following statements regarding serial port:

  1. Serial port transmits one bit at a time.
  2. It is slower than parallel port.

Q28. Which port transmits 8 bits simultaneously?

Q29. Read the following statements regarding HDMI:

  1. HDMI has 19 pins.
  2. It is used for multimedia connections.

Q30. Which port is used to connect keyboard and mouse?

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