Human–Computer Interaction – MCQs — Multimedia System MCQs

1. Who coined the term “Human–Computer Interaction”?
(A) Douglas Engelbart
(B) Stuart Card
(C) Alan Turing
(D) John M. Carroll

2. Which device is considered the primary input device for most HCI systems?
(A) Keyboard
(B) Scanner
(C) Joystick
(D) Projector

3. Which of the following is a direct manipulation interface?
(A) Command-line interface
(B) Graphical user interface
(C) Script-based interface
(D) Menu-driven interface

4. Which pointing device uses a ball to detect movement?
(A) Optical mouse
(B) Trackball
(C) Touchpad
(D) Joystick

5. Which law in HCI relates the time required to move to a target area to the distance and size of the target?
(A) Hick’s Law
(B) Fitts’ Law
(C) Miller’s Law
(D) Keystroke Level Model

6. Which type of feedback is essential in HCI to confirm user actions?
(A) Visual feedback
(B) Audio feedback
(C) Haptic feedback
(D) All of the above

7. Which of the following is an example of a natural user interface?
(A) Command-line interface
(B) Touchscreen gestures
(C) Function keys
(D) Menu navigation

8. What does GUI stand for in HCI?
(A) Graphical User Interaction
(B) Graphical User Interface
(C) General User Interface
(D) Graphical Utility Interaction

9. Which of the following is a usability principle?
(A) Efficiency
(B) Learnability
(C) Satisfaction
(D) All of the above

10. Which input device is commonly used in virtual reality systems?
(A) Joystick
(B) VR gloves
(C) Barcode reader
(D) Light pen

11. Which color combination is most effective for readability in HCI design?
(A) Red on blue
(B) White on black
(C) Yellow on green
(D) Blue on red

12. Which is a primary goal of HCI?
(A) Reduce hardware cost
(B) Improve user performance
(C) Replace software development
(D) Increase CPU speed

13. Which HCI evaluation method involves real users performing tasks?
(A) Heuristic evaluation
(B) Cognitive walkthrough
(C) Usability testing
(D) GOMS analysis

14. Which interaction style uses a series of on-screen lists to navigate?
(A) Command language
(B) Form-fills
(C) Menu selection
(D) Direct manipulation

15. Which of the following is a qualitative data collection method in HCI?
(A) Questionnaires
(B) Interviews
(C) Eye-tracking
(D) Keystroke logging

16. Which HCI model represents the user, task, and system as three interacting components?
(A) GOMS
(B) Three-Stage Model
(C) Norman’s Model
(D) Interaction Framework

17. What is the primary advantage of a touch screen interface?
(A) Low cost
(B) Direct interaction with objects
(C) More storage
(D) Faster processing

18. Which sensory channel is most used in HCI?
(A) Visual
(B) Auditory
(C) Tactile
(D) Olfactory

19. Which is an example of a multimodal interface?
(A) Voice commands only
(B) Touchscreen only
(C) Voice plus gesture
(D) Keyboard only

20. Which of the following is an input device for physically challenged users?
(A) Braille keyboard
(B) Standard mouse
(C) Barcode scanner
(D) Touchpad

21. Which HCI law states that decision time increases with the number of choices?
(A) Fitts’ Law
(B) Hick’s Law
(C) Murphy’s Law
(D) Miller’s Law

22. Which display technology is most common in modern HCI systems?
(A) CRT
(B) LCD
(C) Plasma
(D) LED

23. Which interface type uses natural language to communicate with the user?
(A) GUI
(B) Command-line interface
(C) Natural language interface
(D) Menu interface

24. Which usability factor focuses on how easy it is to learn a system?
(A) Efficiency
(B) Learnability
(C) Memorability
(D) Satisfaction

25. Which device is often used for pointing in CAD applications?
(A) Mouse
(B) Graphics tablet
(C) Joystick
(D) Touchpad

26. Which of the following is a type of haptic feedback device?
(A) Force-feedback joystick
(B) Optical mouse
(C) Barcode reader
(D) Microphone

27. Which is an advantage of voice recognition in HCI?
(A) Works in noisy environments
(B) Allows hands-free operation
(C) Requires less memory
(D) Is faster than typing in all cases

28. Which principle suggests grouping related functions together in interface design?
(A) Consistency
(B) Affordance
(C) Proximity
(D) Visibility

29. Which evaluation method does not involve actual users?
(A) Usability testing
(B) Heuristic evaluation
(C) Field study
(D) Think-aloud protocol

30. Which is the best example of an immersive interface?
(A) Desktop GUI
(B) Virtual reality headset
(C) Command prompt
(D) ATM interface

31. Which HCI design principle ensures users can predict the outcome of their actions?
(A) Feedback
(B) Consistency
(C) Predictability
(D) Learnability

32. Which is the least preferred color combination for text and background?
(A) Black text on white background
(B) White text on black background
(C) Red text on green background
(D) Yellow text on blue background

33. Which is an example of an assistive technology?
(A) Screen reader
(B) Printer
(C) Scanner
(D) Webcam

34. Which factor affects the performance of a touch interface?
(A) Screen resolution
(B) Touch sensitivity
(C) Lighting conditions
(D) All of the above

35. Which interaction style requires memorization of commands?
(A) Command-line interface
(B) Menu selection
(C) Direct manipulation
(D) Form-fills

36. Which input device detects pen or stylus pressure?
(A) Optical mouse
(B) Graphics tablet
(C) Light pen
(D) Trackball

37. Which interface style uses icons to represent functions?
(A) Command language
(B) Menu interface
(C) Graphical user interface
(D) Form-fill interface

38. Which usability goal focuses on the speed of task completion?
(A) Efficiency
(B) Learnability
(C) Memorability
(D) Error tolerance

39. Which of the following is a common cause of usability problems?
(A) Inconsistent design
(B) Clear feedback
(C) Adequate training
(D) Appropriate metaphors

40. Which device is used to track eye movement in usability studies?
(A) Eye-tracker
(B) Webcam
(C) Optical mouse
(D) Kinect sensor

41. Which model describes user interaction in terms of goals, operators, methods, and selection rules?
(A) GOMS model
(B) Norman’s model
(C) Three-Stage model
(D) Interaction framework

42. Which is a disadvantage of a touch interface?
(A) Direct manipulation
(B) Lack of tactile feedback
(C) Easy to use
(D) Portable

43. Which is an example of indirect manipulation in HCI?
(A) Dragging an icon
(B) Using arrow keys to move a cursor
(C) Pinch-to-zoom gesture
(D) Touching a screen button

44. Which factor is important for designing accessible interfaces?
(A) Color contrast
(B) Text size
(C) Alternative text for images
(D) All of the above

45. Which is an example of tangible user interfaces?
(A) Mouse
(B) Keyboard
(C) Physical objects representing digital data
(D) Joystick

46. Which HCI law relates to human memory capacity being limited to about 7±2 items?
(A) Fitts’ Law
(B) Hick’s Law
(C) Miller’s Law
(D) Norman’s Law

47. Which device is designed for gesture recognition?
(A) Kinect
(B) Barcode scanner
(C) Printer
(D) Projector

48. Which interface is most suitable for complex commands requiring precision?
(A) Command-line interface
(B) Touch interface
(C) Voice interface
(D) Gesture interface

49. Which is an example of a wearable interface device?
(A) VR headset
(B) Smartwatch
(C) AR glasses
(D) All of the above

50. Which term in HCI refers to the system’s ability to recover from user errors?
(A) Flexibility
(B) Error tolerance
(C) Consistency
(D) Learnability