CBSE Class 3 Computer Input Output & Storage Devices MCQs

1. Which of the following is a cursor control device?
(a) Printer
(b) Scanner
(c) Trackball
(d) Microphone
Answer : C

2. A scroll wheel is found on which of the following input devices?

Answer : B

3. Which of the following statements is INCORRECT?
(a) A journalist uses e-mail and networks to fi le stories and reports from around the world.
(b) In a LCD monitor, LCD stands for Liquid Crystal Display.
(c) Backspace is the only erase key on the keyboard.
(d) Input and output devices are connected to the computer using ports.
Answer : C

4. Which of the following statements is INCORRECT about input devices?
(a) MICR is used in banks to read characters on a cheque.
(b) Light pen and Joystick are both pointing devices.
(c) Multiple choice examination answer sheets can be evaluated automatically by OMR.
(d) Webcam is only used to produce sound.
Answer : D

5. Which of the following type of keyboards is used in smartphones?
(a) Chorded keyboard
(b) Thumb keyboard
(c) Optical keyboard
(d) Ergonomic keyboard
Answer : B

6. Which of the following is NOT a processing device?

Answer : D

Answer 7: C

Answer 8: B

Answer 9: B

Answer 10: B

Answer 11: A

Answer 12: D

Answer 13: A

14. Which of the following is used as a storage medium in portable hand-held devices such as smartphone and digicams?

Answer : D

15. A _________ is a flat and shiny circular device that is used for loading songs, movies and games in a computer system.
(a) Floppy disk
(b) Compact disc
(c) Pocket drive
(d) Hard disk
Answer : B

16. Which of the following is a storage device that needs to be connected to a port present on the CPU box?
(a) CD
(b) Magnetic tape
(c) Microphone
(d) Flash drive
Answer : D

17. _______ is an output device which is similar to printer but is bigger in size and used for making drawing on paper with automated pens.
(a) Plotter
(b) Projector
(c) Scanner
(d) Protector
Answer : A

18. Identify the part pointed by X in the given image. 

(a) Pointing stick
(b) Trackball
(c) Joystick
(d) Stylus
Answer : B

19. Match the following:

(a) (A)-1,(B)-2,(C)-3
(b) (A)-2,(B)-1,(C)-3
(c) (A)-3,(B)-2,(C)-1
(d) (A)-1,(B)-3,(C)-2
Answer : C

20. Arrange the following in CORRECT order of Input-Process-Output cycle.
1. Boiling water, tea leaves, milk and sugar in tea pot.
2. Pouring water, tea leaves, milk and sugar in tea pot.
3. Pouring tea in the cup.
(a) 1→2→3
(b) 3→2→1
(c) 2→1→3
(d) 2→3→1
Answer : C

21. Which of the following device‛s speed is measured in lines per minute?

Answer : A

22. Complete the given word and select the statement which is CORRECT about it.
                           I _ K_E_
(a) It is a device found inside the CPU cabinet.
(b) It is a program used for drawing images.
(c) It is a type of printer.
(d) It is a data capture device.
Answer : C

23. Which of the following is NOT a pointing device?

Answer 23: C

Answer 24: C

25. Arrange the following activities in CORRECT order of IPO cycle.
1. User inserts ATM card in machine.
2. Collects the cash and take out the card.
3. Enter the pin and amount to be withdrawn.
(a) 1 → 2 → 3
(b) 2 → 1 → 3
(c) 1 → 3 → 2
(d) 2 → 3 → 1
Answer : C

26. Match the following :

(a) (A)–(4), (B)–(2), (C)–(1), (d)–(3)
(b) (A)–(4), (B)–(1), (C)–(2), (d)–(3)
(c) (A)–(3), (B)–(4), (C)–(1), (d)–(2)
(d) (A)–(3), (B)–(1), (C)–(2), (d)–(4)
Answer : C

27. A ______ is an input device that enables user to draw with hand, using a stylus.
(a) Graphics tablet
(b) Mouse
(c) Keyboard
(d) Joystick
Answer : A

28. Following are the names of input and output devices in jumbled form.
ACNRESNNRIPTRE    EPKSARE     IJCSOTYK     PTHOACDU
There are ____ input devices and ____ output devices.
(a) 3, 2
(b) 2, 3
(c) 1, 4
(d) 4, 1
Answer : A

29. Match the following

(a) (A) – (4), (B) – (3), (C) – (1), (D) – (2)
(b) (A) – (4), (B) – (3), (C) – (2), (D) – (1)
(c) (A) – (4), (B) – (2), (C) – (3), (D) – (1)
(d) (A) – (2), (B) – (4), (C) – (1), (D) – (3)
Answer : A

30. Which of the following devices is/are input devices?

(a) Only (i) and (ii)
(b) (ii), (iii) and (iv)
(c) (iii), (iv) and (v)
(d) Only (ii) and (iii)
Answer : C

31. Identify the following.

– It is a technology that takes the movements of the human body as an input.
– It helps human to interact with the computer without the help of input devices such as mouse, keyboard, joystick, etc.
(a) Vision technology
(b) Touch screen
(c) Touch technology
(d) Gesture recognition
Answer : D

32. Which of the following devices can store large amount of data permanently and can be easily carried out in pockets or wallets?

Answer : C

33. Which of the following statements holds true?
Statement 1: Composite devices are the devices that have more than two different forms of input.
Statement 2: Game controller devices are the examples of composite devices.
(a) Only Statement 1
(b) Only Statement 2
(c) Both Statement 1 and Statement 2
(d) Neither Statement 1 nor Statement 2
Answer : C

34. Identify the following.

– It is an external storage device that connects via USB port on the computer.
– Its storage capacity is larger than other storage devices, such as Floppy disk, CD and DVD.
(a) Extra Hard disk
(b) External Hard disk
(c) External USB
(d) External Port device
Answer : B

35. In the given IPO (Input-Process-Output) cycle, which of the following devices marked as (i), (ii) and (iii) help to store, sort and arrange the inputs in a computer?

Answer : B

36. Arrange the following activities in CORRECT order of Input-Process-Output (IPO) cycle.
(i) Sound comes out from the CD player.
(ii) A CD goes into the CD player.
(iii) CD player reading the CD.
(a) (ii)-(iii)-(i)
(b) (i)-(ii)-(iii)
(c) (ii)-(i)-(iii)
(d) (i)-(iii)-(ii)
Answer : A

37. Which of the following is an electronic storage medium device used in smartphones and tablets that can retain data even when device (phones, tablets, etc.) is powered off?

Answer : A

38. What should come in place of ‘P‛,‘Q‛,‘R‛ and ‘S‛ regarding the given diagram?

Answer : A

39. Identify the following

– It is a type of keyboard that you can roll or unroll as per your need.
– It is fl exible in nature and suitable for a person who travels a lot.
(a) Switch keyboard
(b) Roll-up keyboard
(c) Unfolded keyboard
(d) Unroll-fl exible keyboard
Answer : B

40. Identify ‘P‛, ‘Q‛, ‘R‛ and ‘S‛, if: (2014)
‘P‛ accepts the input data,
‘Q‛ processes the input data,
‘R‛ displays the result and ‘S‛ stores the result

(a) It is an output device.
(b) It is used for recording sounds into the computer.
(c) It can copy words, pictures on paper into the computer.
(d) Both A and B

Answer 40: D

Answer 41: B

42. Identify the following.
- It is one of the most widely used peripheral
- It has around hundred mechanical buttons on it.
(a) Keyboard
(b) Scanner
(c) Printer
(d) Trackball
Answer : A

43. Which of the following is an input device that has a glass fixed in it and is used for making the digital copy of the paper or image kept on that glass to be stored in computer?

Answer 43: C

Answer 44: A

Answer 45: A

46. Which of the following statements hold true about primary memory of a computer?
Statement 1 : RAM and ROM are two types of primary memory.
Statement 2 : ROM contains important information and instructions on how to start a computer.
(a) Only Statement 1
(b) Only Statement 2
(c) Both Statement 1 and Statement 2
(d) Neither Statement 1 nor Statement 2
Answer : C

47. Secondary memory comprises of ________.
(a) CD,DVD and flash drives
(b) RAM and Hard disk
(c) ROM, Floppy disk and flash drives
(d) RAM and ROM
Answer : A

48. The process of Input-Process-Output cycle is not only performed in computers but also in real life. When you talk to your friend using a phone, then also IPO cycle is performed. Which of the following statements is INCORRECT regarding the steps shown in the image shown here?

(a) In Step 1, the input is supplied by dialing the number.
(b) Step 2 shows the process of connecting the number.
(c) Step 3 shows that the call gets connected and person is having the conversation over the phone.
(d) None of these
Answer : D

49. What do you understand by terms 'data' and 'command' with respect to computers?
(a) Number or text entered into the computer is data and telling computer to do something is called command.
(b) Number or text entered into the computer is data and processing that data to compute fi nal result is command.
(c) Meaningful form of input is called data and its raw form is called command.
(d) Processing the input fed into computer is called data and hard copy of output is called command.
Answer : A

50. In a computer, user feeds the data using input devices, which is then passed to the CPU for processing and the result is stored and then displayed through output devices. During all these tasks, the flow of data to and from the CPU is organised by_________.
(a) Flash drive
(b) Keyboard
(c) Vacuum tube
(d) Control unit
Answer : D