Computer Hardware MCQ Questions And Answers For Competitive Exams
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1. Any component of the computer you can see and touch is
(a) software
(b) peripheral
(c) storage
(d) CPU
(e) hardware
2. Which of the following is not a hardware?
(a) Processor chip
(b) Printer
(c) Mouse
(d) Java
3. A(n) …… device is any hardware component that allows you to enter data and instructions into a computer.
(a) interaction
(b) input
(c) communication
(d) output
(e) terminal
4. Computer gets …… with the help of mouse, joystick or keyboard.
(a) insert
(b) delete
(c) input
(d) output
5. Computer keyboard is an example of
(a) memory device
(b) input device
(c) output device
(d) Both (b) and (c)
6. The most common method of entering text and numerical data into a computer system is through the use of a
(a) plotter
(b) scanner
(c) printer
(d) keyboard
(e) None of these
7. Which key is also known as toggle keys?
(a) Caps lock
(b) Num lock
(c) Both (a) and (b)
(d) None of these
8. You can use the Tab key to
(a) move a cursor across the screen
(b) indent a paragraph
(c) move the cursor down the screen
(d) Both (a) and (b)
(e) None of the above
9. To move to the beginning of a line of text, press the …… key.
(a) Page up
(b) Shift
(c) Home
(d) Enter
10. In a keyboard, left-right-up-down set of keys facilitates which among the following functions?
(a) Deleting data or modification
(b) Page scrolling to view a document
(c) Launching Start Menu
(d) Initiating Search and Help
(e) Controlling RAM or process execution
11. Shift, Ctrl, Alt are examples of which among the following category?
(a) Modifier keys
(b) Primary keys
(c) Function keys
(d) Alternate keys
(e) Candidate keys
12. Pointing device includes the following except
(a) mouse
(b) joystick
(c) trackball
(d) keyboard
13. What type of device is a computer mouse?
(a) Storage
(b) Output
(c) Input
(d) Input/output
(e) Software
14. Which of these is a pointing and draw device?
(a) Mouse
(b) Scanner
(c) Printer
(d) CD-ROM
(e) Keyboard
15. First computer mouse was built by
(a) Douglas Engelbart
(b) William English
(c) Oaniel Coogher
(d) Robert Zawacki
16. Keyboard and …… are the examples of input device.
(a) monitor
(b) modem
(c) printer
(d) mouse
(e) CPU
17. Which is the best position for operating the mouse?
(a) Tail away from the user
(b) Tail towards the user
(c) Tail facing the right
(d) Tail facing the left
18. Which button is called as middle button used as third mouse button by pressing on it?
(a) Right button
(b) Scroll wheel
(c) Touch bar
(d) Light bar
(e) Left button
19. Trackball is an example of a/an
(a) programming device
(b) pointing device
(c) output device
(d) software device
20. Which of the following is an input device used to enter motion data into computers or other electronic devices?
(a) Plotter
(b) Trackball
(c) Monitor
(d) Joystick
21. A joystick is primarily used to/for …… .
(a) control sound on the screen
(b) computer gaming
(c) enter text
(d) draw pictures
(e) print text
22. Which of the following is a lever that can be moved in several directions to control the movement of an image on a computer monitor or similar display screen? [
(a) MIDI devices
(b) Optical mark reader
(c) Visual display unit
(d) Joystick
23. Which one of the following is not an output device?
(a) Projector
(b) Headphones
(c) Plotter
(d) Joystick
24. CAD stands for
(a) Computer Automatic Design
(b) Computer Aided Decode
(c) Computer Automatic Decode
(d) Computer Aided Design
25. ………. is generally used in applications like ATM, hospitals, airline reservation, etc.
(a) Light pen
(b) Touch screen
(c) Joystick
(d) Trackball
26. Which one does not related to mobile phone touch panel sensing methods?
1. Finger touch
2. Voice recognition
3. Gloved touch
4. Light transmittance
(a) 2
(b) 1
(c) 4
(d) 3
27. The pattern of printed lines on most products are called
(a) prices
(b) OCR
(c) scanners
(d) barcodes
28. A barcode reader is an example of
(a) processing device
(b) storage device
(c) input device
(d) output device
29. An optical input device that interprets pencil marks on paper media is ………
(a) OMR
(b) punch card reader
(c) optical scanners
(d) magnetic tapes
(e) stylus
30. The OCR is used for the preparation of
(a) electricity bills
(b) insurance premium
(c) telephone bills
(d) All of these
(e) None of these
31. The OCR recognises the …… of the characters with the help of light source.
(a) size
(b) shape
(c) colour
(d) used ink
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32. What does MICR stand for?
(a) Magnetic Ink Character Register
(b) Magnetic Ink Code Reader
(c) Magnetic Ink Code Register
(d) Magnetic Ink Character Recognition
(e) Magnetic Ink Cases Reader
33. Large amounts of cheques are processed by using
(a) OCR
(b) MICR
(c) OMR
(d) All of these
34. Which of the following device recognises physical traits of an individual?
(a) Smart card
(b) Biometric sensor
(c) Barcode
(d) MICR
35. Which of the following consists of an electronic writing area and a special pen that works with it?
(a) Trackball
(b) Plotters
(c) Abacus
(d) Graphics tablet
36. Which of the following converts analog information into digital form?
(a) Barcode reader
(b) Optical mark reading
c) Digitizer
(d) Gamepad
37. A…….. is used to read handwritten or printed text to make a digital image that is stored in memory.
(a) printer
(b) laser beam
(c) scanner
(d) touchpad
38. The input device to be used to get a printed diagram into a computer is the
(a) printer
(b) mouse
(c) keyboard
(d) touchpad
(e) scanner
39. A scanner scans
(a) pictures
(b) text
(c) both pictures and text
(d) neither pictures nor text
(e) None of the above
40. It is a video capturing device
(a) webcam
(b) microphone
(c) monitor
(d) mouse
41. An example of an input device is
(a) soundcard
(b) headphones
(c) projector
(d) webcam
42. Which of the following could be digital input devices for computers?
(a) Digital camcorder
(b) Microphone
(c) Scanner
(d) All of the above
(e) None of the above
43. Which of the following groups consists of only input devices?
(a) Mouse, Keyboard, Monitor
(b) Mouse, Keyboard, Printer
(c) Mouse, Keyboard, Plotter
(d) Mouse, Keyboard, Scanner
44. Results are obtained from computer through its
(a) input unit
(b) ALU unit
(c) CU unit
(d) output unit
45. After a picture has been taken with a digital camera and processed appropriately, the actual print of the picture is considered as
(a) data
(b) output
(c) input
(d) the process
46. Using output device one can ………
(a) view or print data
(b) modify data
(c) store data
(d) replicate data
(e) enter data
47. Which among the following is the smallest unit in an image in a computer screen?
(a) Unit
(b) Pixel
(c) Array
(d) Resolution
(e) Clip
48. What type of device is a computer monitor?
(a) Software
(b) Processing
(c) Storage
(d) Input
(e) Output
49. Soft copy refers to …… .
(a) printed output
(b) digitising
(c) music sounds
(d) screen output
(e) None of these
50. The higher the resolution of a monitor, the
(a) larger the pixels
(b) less clear the screen is
(c) further apart the pixels
(d) closer together the pixels
51. Screen or monitor device is
(a) hard copy
(b) soft copy
(c) input device
(d) display device
52. The CRT is ……… in shape.
(a) circular
(b) rectangular
(c) eclipse
(d) conical
(e) None of these
53. CRT has a ]
(a) hollow tube
(b) vacuum tube
c) long tube
(d) round tube
(e) None of these
54. The rate at which scanning is repeated in a CRT is called
(a) refresh rate
(b) resolution
(c) pitch
(d) bandwidth
55. …… provides hard copy output on paper.
(a) Mouse
(b) Keyboard
(c) LCD monitor
(d) Scanner
(e) Printer
56. Printer is an example of
(a) output device
(b) input device
(c) processing device
(d) storage device
(e) None of the above
57. What are the units used to count the speed of a printer?
(a) CPM
(b) DPI
(c) PPM
(d) BIT
(e) None of these
58. …… printer cannot print more than one character at a time.
(a) Line
(b) Daisy wheel
(c) Laser
(d) Dot matrix
59. Speed of line printer is limited by the speed of
(a) paper movements
(b) cartridge used
(c) length of paper
(d) All of these
(e) None of these
60. An example of peripheral equipment is
(a) printer
(b) CPU
(c) spreadsheet
(d) microcomputer
61. Dot matrix printer is
(a) unidirectional
(b) bi-directional
(c) sequential
(d) random
62. The impact printers are
(a) dot matrix
(b) drum
(c) inkjet
(d) Both (a) and (b)
63. Drum printer is an example of
(a) input
(b) output
(c) processing
(d) storage
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64. The example of non-impact printers are
(a) Laser-Dot matrix
(b) Inkjet-Laser
(c) Inkjet-Dot matrix
(d) Dot matrix
(e) None of these
65. Line printer speed is specified in terms of
(a) LPM (Lines Per Minute)
(b) CPM (Characters Per Minute)
(c) DPM
(d) Any of the above
(e) None of the above
66. In laser printers, printing is achieved by deflecting laser beam on to …… surface of a drum.
(a) magnetised
(b) photosensitive
(c) magnetic
(d) Either (a) or (b)
(e) None of these
67. Which of the following printers, are you sure, will not to use if your objective is to print on multi carbon forms?
(a) Daisy wheel
(b) Dot matrix
(c) Laser
(d) Thermal
68. Laser printers belong to
(a) line printer
(b) page printer
(c) band printer
(d) dot matrix printer
69. A hard copy would prepared on a
(a) line printer
(b) dot matrix printer
(c) plotter
(d) type writer terminal
(e) All of these
70. Who invented the 3D printer?
(a) Nick Holonyak
(b) Elias Howe
(c) Chuck Hull
(d) Christian Huygens
71. It is used to produce large drawings or images such as construction plans, blueprints for mechnanical object, etc.
(a) Printer
(b) Plotter
(c) MICR
(d) OCR
72. What type of devices are computer speakers or headphones?
(a) Input
(b) Input/Output
(c) Software
(d) Storage
(e) Output
73. Which is not an item of hardware?
(a) An MP3 file
(b) A keyboard
(c) A mouse
(d) Printer
(e) None of these
74. The transfer of data from a CPU to peripheral devices of computer is achieved through
(a) interfaces
(b) buffer memory
(c) modems
(d) I/O ports
75. A parallel port is most often used by a
(a) printer
(b) monitor
(c) mouse
(d) external storage device
76. USB in data cables stands for
(a) Unicode Smart Bus
(b) Universal Structural Bus
(c) Unicode Serial Bus
(d) Universal Smart Bus
(e) Universal Serial Bus
77. USB refers to
(a) a storage device
(b) a processor
(c) a port type
(d) a serial bus standard
78. Which of the following are properties of USB?
(a) Platform independent
(b) Platform dependent
(c) Source dependent
(d) Software dependent
(e) Software Independent
79. The …… format reduces an audio file to about one-tenth of its original size, while preserving much of the original quality of the sound.
(a) DOC
(b) PNG
(c) GIF
(d) MP3
(e) VMEG
80. Peripheral devices such as printers and monitors are considered to be …… .
(a) hardware
(b) software
(c) data
(d) information
(e) source code
81. External devices such as printers, keyboards and modems are known as
(a) add-on devices
(b) peripherals
(c) extra software devices
(d) PC expansion slot add-ons
(e) special buys
82. …… can interpret voice data into words that can be understood by the computer.
(a) Speech input hardware
(b) Speech recognition software
(c) Word recognition software
(d) Talking software
(e) Other than those given as options
83. Dumb terminals have terminals and
(a) mouse
(b) speakers
(c) keyboard
(d) mouse or speakers
(e) None of these
84. Which one of the following input device is user-programmable?
(a) Dumb terminal
(b) Smart terminal
(c) VDT
(d) Intelligent terminal
(e) All of these
85. Input devices are used to provide the steps and tasks the computer needs to process data and these steps and tasks are called
(a) program
(b) design
(c) information
(d) instructions
(e) flow chart
86. For printing MICR characters, the ink used contains
1. Lead oxide
2. Graphite
3. Cuprous oxide
4. Iron oxide
(A) 2
(B) 3
(C) 4
(D) 1
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ANSWERS1. (e) 2. (d) 3. (b) 4. (c) 5. (b) 6. (d) 7. (c) 8. (b) 9. (c) 10. (b) 11. (a) 12. (d) 13. (c) 14. (a) 15. (a) 16. (d) 17. (b) 18. (b) 19. (b) 20. (b) 21. (b) 22. (d) 23. (d) 24. (d) 25. (b) 26. (a) 27. (d) 28. (c) 29. (a) 30. (d) 31. (b) 32. (d) 33. (b) 34. (b) 35. (d) 36. (c) 37. (c) 38. (e) 39. (c) 40. (a) 41. (d) 42. (d) 43. (d) 44. (d) 45. (c) 46. (a) 47. (b) 48. (e) 49. (d) 50. (d) 51. (d) 52. (b) 53. (b) 54. (a) 55. (e) 56. (a) 57. (b) 58. (d) 59. (a) 60. (a) 61. (b) 62. (d) 63. (b) 64. (b) 65. (b) 66. (b) 67. (c) 68. (b) 69. (e) 70. (c) 71. (b) 72. (e) 73. (a) 74. (d) 75. (a) 76. (e) 77. (c) 78. (a) 79. (d) 80. (a) 81. (b) 82. (b) 83. (d) 84. (d) 85. (d) 86. (c)
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