MCQ Questions from Computer Hardware Concept Page 2/4

21. Which is the most common computer keyboard layout?

a. QWERTY

b. JCUKEN

c. Devorak

d. Colemark

22. QWERTY keyboard layout was originally designed

a. To improve the typing speed

b. To make typing more efficient

c. To make typing harder and inefficient

d. To improve the typing accuracy

23. Which of the following describes the types of keyboards?

a. QWERTY, Devorak, Colemark, JCUKEN

b. XT, AT, Enhanced, Windows

c. Both of above

d. None of above

24. Which of the following keyboard have 83 keys?

a. XT keyboards

b. AT keyboards

c. Enhanced keyboards

d. Windows keyboards

25. Which of the following type of keyboard introduced the
SysRq (System Request) key?

a. XT keyboards

b. AT keyboards

c. Enhanced keyboards

d. Windows keyboards

26. Which type of computer keyboard contain 101 to 106 keys?

a. XT keyboards

b. AT keyboards

c. Enhanced keyboards

d. Windows keyboards

27. Which key was added in Windows keyboard?

a. SysRq

b. CapsLock

c. Menu key

d. None of above

28. The most common input device to control the movement of
the cursor on the screen?

a. Arrow keys

b. Mouse

c. Joysticks

d. Plotter

29. Which of the following type of mouse contain a ball on
its underside and sensors to detect direction of ball movement?

a. Mechanical mouse

b. Opto-mechanical mouse

c. Optical mouse

d. None of above

30. What is the difference between mechanical mouse and opto-mechanical
mouse?

a. Mechanical mouse is connected with wire but opto-mechanical
mouse are wireless

b. Mechanical mouse has a ball on its underside but
opto-mechanical don’t have

c. Mechanical mouse has only 2 buttons while opto-mechanical
mouse have 3 buttons.

d. All of the above

31. Cordless mouse or wireless mouse connects to the computer
through

a. Infrared light

b. Radio wave

c. Both of above

d. None of above

32. What is the device that captures images from photographic
prints for computer editing and display?

a. Scanner

b. Printer

c. Camera

d. All of above

33. Which of the following is not a type of scanner?

a. Hand held scanner

b. Feed-in scanner

c. Flatbed scanner

d. None of above

34. Which of the following is a scanning technology?

a. OCR

b. OMR

c. BCR

d. All of above

35. The scanning technology that allows to read the check
boxes affixed in predefined space is

a. OCR

b. OMR

c. BCR

d. None of above

36. The scanning technology that makes it possible to
recognize handwritten data when there is usually space among characters is

a. OMR

b. ICR

c. MICR

d. OCR

37. We use following scanner to recognize the printed and
typed texts

a. OMR

b. OCR

c. MICR

d. None of above

38. The scanner used to verify the signatures written by
magnetic ink in banks is

a. OMR

b. OCR

c. MICR

d. None of above

39. A unit that receives information from CPU and converts
into suitable human readable form is

a. Input Unit

b. Output Unit

c. Processing Unit

d. Language Translator

40. A computer monitor is also called a

a. VDT

b. VDU

c. CRT

d. None of above