CBSE Class 3 Computer Fundamentals of Computer MCQs

1.Which of the following statements about a computer is NOT correct?
(a) You can watch movies on it.
(b) You can solve your sums on it.
(c) You can play games on it.
(d) You can cook food with it
Answer : D

2. The control unit of the computer controls the __________.
(a) working of the computer keyboard
(b) fl ow of electricity within the computer
(c) fl ow of data in the computer
(d) performance of all arithmetic and logical operations
Answer : D

3. Select the incorrect sentence.
(a) The output that is printed on the paper is called hard copy.
(b) The computer understands instructions in the form of mechanical signals.
(c) Storing the data on the computer is called storage or memory.
(d) The results displayed on the monitor screen are called soft copy.
Answer : B

4. Which of the following can be used in a micro-computer?

Answer 4: C

Answer 5: C

6. Which of the following statements is INCORRECT?
(a) The cable of keyboard is attached to CPU.
(b) The power cable of printer is connected to UPS.
(c) The cable of CPU is plugged in the UPS.
(d) The cable of mouse is attached to monitor.
Answer : D

7. Computers are used in hospitals ______.
(a) by doctors to write prescriptions
(b) diagnosing diseases with ultrasound scanners
(c) driving to emergency call locations using GPS
(d) all of these
Answer : D

8. The given image shows that computers are used ______.

(a) in flying aircrafts
(b) to send radar signals
(c) in launching spacecrafts
(d) in designing computerized cars
Answer : B

9. Which of the following statements is INCORRECT regarding the use of computer in banks?
(a) Banks issue only debit cards.
(b) Banks issue monthly account statements.
(c) Banks keep details of money deposited and withdrawn.
(d) None of these
Answer : A

10. Computers help scientists in ______.
(a) launching rockets
(b) Surfing in cyber cafes
(c) playing games
(d) Both (a) and (c)
Answer : A

11. In which of the following areas, computers are NOT used for entertainment purposes?
(a) Playing/recording songs
(b) Drawing pictures
(c) Publishing books
(d) Watching movies
Answer : C

12. Which of the following is an example of a Micro-computer?

(a) Only 1 and 3
(b) Only 1 and 2
(c) Only 2 and 3
(d) All of these
Answer : D

13. In schools, computers are used _____.
(a) to prepare medical report of patients
(b) to diagnose diseases
(c) to keep records of students and teachers
(d) for scientifi c research only
Answer : C

14. Which of the following jumbled words is NOT related to computer?
(a) PNUIT
(b) SRPCOES
(c) TENIRS
(d) THOWR
Answer : D

15. __________ controls the movement of information between the memory, the ALU and other parts of computer.
(a) Logical Unit
(b) Control Unit
(c) Memory Unit
(d) Primary Unit
Answer : B

16. The text shown in the monitor is called as _____.

(a) data
(b) processing
(c) fact
(d) All of these
Answer : A

17. The term “Brightness” is related to which of the following devices?

Answer : B

Answer 18: B

Answer 19: A

Answer 20: D

21. 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

22. To de-select a highlighted icon on desktop as shown in the given image, you should ___________.

(a) press the Esc key
(b) click on the empty area on the desktop
(c) wiggle the mouse
(d) press the Ctrl key
Answer : B

23. Select the CORRECT match.

Answer : A

24. An image of a microcomputer is shown here. What do you understand by it? 

(a) A small computer with a microprocessor.
(b) A computer used by scientists to research about micro-technology.
(c) A computer which is developed by merging two mainframe computers.
(d) A computer used for robotics.
Answer : A

25. Which of the following statements is/are CORRECT about the given device?

(a) It is a digital device.
(b) It is used for performing basic calculations.
(c) It was invented by Charles Babbage.
(d) It is an electronic device.
Answer : B

Answer 26: B

Answer 27: A

28. The processing speed of first generation computers was
(a) milliseconds
(b) microseconds
(c) nanoseconds
(d) picoseconds
Answer : A

29. The word Abacus is derived from Abax, a word from
(a) Latin language
(b) Greek Language
(c) Sanskrit language
(d) Ancient Egypt
Answer : A

30. Which was the computer conceived by Babbage?
(a) Analytical Engine
(b) Arithmetic Machine
(c) Donald Kunth
(d) All of above
Answer : A

31. Match the following.

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

32. When we say the monitor is 1920 × 1084 pixels, 1920 × 1084 is the ________.
(a) number of colours on the monitor
(b) size of the monitor
(c) resolution of the monitor
(d) power consumed by the monitor
Answer : C

33. Aakash is applying in a school for admission in class 4. He has hard copy of his class 3 marksheet. He has to e-mail his class 3 marksheet to the school. Which of the following components he may need?

(a) 1, 2, 5
(b) 1, 4, 5
(c) 1, 2, 4, 5
(d) 1, 4
Answer : D

34. ___________ is a name for the computer.
___________ is known as the Brain of the computer.
___________ stores information temporarily or permanently as per our need.
___________ is used for logical and mathematical operations.
(a) CPU, MU, ALU, CU
(b) PC, ALU, MU, CU
(c) CP, PCU, MU, CU
(d) PC, CPU, MU, ALU
Answer : D

35. Which of the following statements is INCORRECT?
(a) The background picture of the desktop is called wallpaper.
(b) Computer virus destroys information on a computer.
(c) Title bar shows the title of the active program.
(d) John Douglas is the inventor of QWERTY keyboard layout.
Answer : D

36. Match the components given in column-I with their functions in column-II.

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

37. Which part of the CPU performs the following types of calculations?
Is 56 > 78? = NO
60 + 40 = 100
(a) Control Unit
(b) Arithmetic Logical Unit
(c) Memory Unit
(d) Solving Unit
Answer : B

38. Identify the following. 
– It is an integrated circuit that contains all the functions of a Central Processing Unit of a computer.
– It is also called logic chip.
– It is like an engine that starts working when you turn your computer ON.

Answer : B

39. Identify the jumbled words. To which category do these words belong?
                                 ATEBLT PTALMPO HPALBET
(a) Mainframe computers
(b) Desktop computers
(c) Super computers
(d) Hand-held computers
Answer : D

40. Suppose you have performed the following calculations in the computer: 
                     20+40=60
                         2*3=6
                         8/4=2
In which part of the CPU, the outputs: 60, 6 and 2 get stored in the computer?
(a) Control Memory
(b) Store Memory
(c) Memory Unit
(d) None of these
Answer : C

41. Match the following devices in Column-I with their functions in Column-II.

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

42. Computers are used in various fields nowadays and designing is one of those fields.
Which of the following professionals make use of computer for designing purposes?
(a) Architects
(b) Book publisher
(c) Engineers
(d) All of these
Answer : D

43. All the processing of a computer is controlled by a small chip placed on the motherboard. Which of the following devices functionality is also controlled by a small chip?

Answer : D

44. Printer, Scanner and Flash drives are devices that are attached with a computer to provide some basic functionality. They are not the essential part of a computer but yet are quite useful. Which of the following terms can be used for these devices?
(a) Primary devices
(b) Extra devices
(c) Peripherals
(d) Archivers
Answer : C

45. Smartphones have gained immense popularity in the last few years. You can do almost everything on a smartphone that you used to do on desktop PCs. Which of the following tasks CANNOT be performed on smartphone?
(a) Surfi ng Internet
(b) Playing games
(c) Reading a CD
(d) Downloading music
Answer : C

Question. Which of the following is first generation of computer?
a) EDSAC
b) IBM-1401
c) CDC-1604
d) ICL-2900

Answer : A

Question. A fault in a computer program which prevents it from working correctly is known as
a) Boot
b) Bug
c) Biff
d) Strap

Answer : B

Question. Modern Computer are very reliable but they are not
a) Fast
b) Powerful
c) Infallible
d) Cheap

Answer : C

Question. What is a light pen?
a) Mechanical Input device
b) Optical input device
c) Electronic input device
d) Optical output device

Answer : B

Question. Second Generation computers were developed during
a) 1949 to 1955
b) 1956 to 1965
c) 1965 to 1970
d) 1970 to 1990

Answer : B

Question. The computer size was very large in
a) First Generation
b) Second Generation
c) Third Generation
d) Fourth Generation

Answer : A

Question. The device used to carry digital data on analogue lines is called as
a) Modem
b) Multiplexer
c) Modulator
d) Demodulator

Answer : A

Question. Personal computers use a number of chips mounted on a main circuit board) What is the common name for such boards?
a) Daughter board
b) Motherboard
c) Father board
d)Breadboard

Answer : B

Question. What is meant by a dedicated computer?
a) Which is used by one person only
b) Which is assigned one and only one task
c) Which uses one kind of software
d) Which is meant for application software

Answer : B

Question. In most IBM PCs, the CPU, the device drives, memory expansion slots and active components are mounted on a single board) What is the name of this board?
a) Motherboard
b) Breadboard
c) Daughter board
d) Grandmother board

Answer : A

Question. VDU is also called
a) Screen
b) Monitor
c) Both 1 & 2
d) printer

Answer : C

Question. The output quality of a printer is measured by
a) Dot per inch
b) Dot per sq. inch
c) Dots printed per unit time
d) All of above

Answer : B

Question. A computer program that translates one program instructions at a time into machine language is called a/an
a) Interpreter
b) CPU
c) Compiler
d) Simulator

Answer : A

Question. In latest generation computers, the instructions are executed
a) Parallel only
b) Sequentially only
c) Both sequentially and parallel
d) All of above

Answer : C

Question. A self replicating program, similar to a virus which was taken from a 1970s science fiction novel by John Bruner entitled the Shockwave Rider is
a) Bug
b) Vice
c) Lice
d) Worm

Answer : D

Question. Which of the following is also known as brain of computer
a) Control unit
b) Central Processing unit
c) Arithmetic and language unit
d) Monitor

Answer : B

Question. Chief component of first generation computer was
a) Transistors
b) Vacuum Tubes and Valves
c) Integrated Circuits
d) None of above

Answer : B

Question. Which of the following devices can be sued to directly image printed text?
a) OCR
b) OMR
c) MICR
d) All of above

Answer : A

Question. EEPROM stands for
a) Electrically Erasable Programmable Read Only Memory
b) Easily Erasable Programmable Read Only Memory
c) Electronic Erasable Programmable Read Only Memory
d) None of the above

Answer : C

Question. ............ translates and executes program at run time line by line
a) Compiler
b) Interpreter
c) Linker
d) Loader

Answer : B