computer fundamentals mcq questions and answers

Join Our Official AiJobsAdda Telegram Channel

 Multiple Choice Questions with Answers :-


1. UNIVAC is

A) Universal Automatic Computer

B) Universal Array Computer

C) Unique Automatic Computer

D) Unvalued Automatic Computer

 Answers  .A

2. The basic operations performed by a computer are

A) Arithmetic operation

B) Logical operation

C) Storage and relative

D) All the above

 Answers  .D

3. The two major types of computer chips are

A) External memory chip

B) Primary memory chip

C) Microprocessor chip

D) Both b and c

 Answers  .D

4. Microprocessors as switching devices are for which generation computers

A) First Generation

B) Second Generation

C) Third Generation

D) Fourth Generation

 Answers  .D


5. What is the main difference between a mainframe and a super computer?

A) Super computer is much larger than mainframe computers

B) Super computers are much smaller than mainframe computers

C) Supercomputers are focused to execute few programs as fast as possible while mainframe uses its power to execute as many programs concurrently

D) Supercomputers are focused to execute as many programs as possible while mainframe uses its power to execute few programs as fast as possible.

 Answers  .C

6. ASCII and EBCDIC are the popular character coding systems. What does EBCDIC stand for?

A) Extended Binary Coded Decimal Interchange Code

B) Extended Bit Code Decimal Interchange Code

C) Extended Bit Case Decimal Interchange Code

D) Extended Binary Case Decimal Interchange Code

 Answers  .A


7. The brain of any computer system is


B) Memory


D) Control unit

 Answers  .C

8. Storage capacity of magnetic disk depends on

A) tracks per inch of surface

B) bits per inch of tracks

C) disk pack in disk surface

D) All of above

 Answers  .D

9. The two kinds of main memory are:

A) Primary and secondary

B) Random and sequential

C) ROM and RAM

D) All of above

 Answers  .C

10. A storage area used to store data to a compensate for the difference in speed at which the different units can handle data is

A) Memory

B) Buffer

C) Accumulator

D) Address

 Answers  .B

11. Computer is free from tiresome and boardoom. We call it

A) Accuracy

B) Reliability

C) Diligence

D) Versatility

 Answers  .C

12. Integrated Circuits (Ics) are related to which generation of computers?

A) First generation

B) Second generation

C) Third generation

D) Fourth generation

 Answers  .C

13. CD-ROM is a

A) Semiconductor memory

B) Memory register

C) Magnetic memory

D) None of above

 Answers  .D

14. A hybrid computer

A) Resembles digital computer

B) Resembles analogue computer

C) Resembles both a digital and analogue computer

D) None of the above

 Answers  .C

15. Which type of computers uses the 8-bit code called EBCDIC?

A) Minicomputers

B) Microcomputers

C) Mainframe computers

D) Super computer

 Answers  .C

16. The ALU of a computer responds to the commands coming from

A) Primary memory

B) Control section

C) External memory

D) Cache memory

 Answers  .B

17. Chief component of first generation computer was

A) TrAnswers  istors

B) Vacuum Tubes and Valves

C) Integrated Circuits

D) None of above

 Answers  .B

18. To produce high quality graphics (hardcopy) in color, you would want to use a/n

A) RGB monitor

B) Plotter

C) Ink-jet printer

D) Laser printer

 Answers  .B

19. What are the stages in the compilation process?

A) Feasibility study, system design and testing

B) Implementation and documentation

C) Lexical Analysis, syntax analysis, and code generation

D) None of the above

 Answers  .C

20. Which of the following IC was used in third generation of computers?




D) Both a and b

 Answers  .D

21. The main electronic component used in first generation computers was

A) TrAnswers  istors

B) Vacuum Tubes and Valves

C) Integrated Circuits

D) None of above

 Answers  .B

22. A dumb terminal has

A) an embedded microprocessor

B) extensive memory

C) independent processing capability

D) a keyboard and screen

 Answers  .D

23. One millisecond is

A) 1 second

B) 10th of a seconds

C) 1000th of a seconds

D) 10000th of a seconds

 Answers  .C

24. The output quality of a printer is measured by

A) Dot per sq. inch

B) Dot per inch

C) Dots printed per unit time

D) All of the above

 Answers  .A

25. Which of the following was a special purpose computer?




D) All of the above

 Answers  .A

26. What was the computer invented by Attanasoff and Clifford?

A) Mark I


C) Z3

D) None of above

 Answers  .B

27. Which of the following storage devices can store maximum amount of data?

A) Floppy Disk

B) Hard Disk

C) Compact Disk

D) Magneto Optic Disk

 Answers  .B

28. Which computer was considered the first electronic computer until 1973 when court invalidated the patent?



C) Z3


 Answers  .A

29. A physical connection between the microprocessor memory and other parts of the microcomputer is known as

A) Path

B) Address bus

C) Route

D) All of the above

 Answers  .B

30. High density double sided floppy disks could store _____ of data

A) 1.40 MB

B) 1.44 GB

C) 1.40 GB

D) 1.44 MB

 Answers  .D

31. A high quality CAD system uses the following for printing drawing and graphs

A) Dot matrix printer

B) Digital plotter

C) Line printer

D) All of the above

 Answers  .B

32. Which of the following is not an input device?


B) Optical scanners

C) Voice recognition device

D) COM (Computer Output to Microfilm)

 Answers  .D

33. The accuracy of the floating-point numbers representable in two 16-bit words of a computer is approximately

A) 16 digits

B) 6 digits

C) 9 digits

D) All of above

 Answers  .B

34. In most of the IBM PCs, the CPU, the device drivers, memory, expAnswers  ion slots and active components are mounted on a single board. What is the name of the board?

A) Motherboard

B) Daughterboard

C) Bredboard

D) Fatherboard

 Answers  .A

35. In most IBM PCs, the CPU, the device drives, memory expAnswers  ion 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

 Answers  .A

36. Magnetic disks are the most popular medium for

A) Direct access

B) Sequential access

C) Both of above

D) None of above

 Answers  .D

37. A technique used by codes to convert an analog signal into a digital bit stream is known as

A) Pulse code modulation

B) Pulse stretcher

C) Query processing

D) Queue management

Answers  .A

38. Regarding a VDU, Which statement is more correct?

A) It is an output device

B) It is an input device

C) It is a peripheral device

D) It is hardware item

 Answers  .C

39. A modern electronic computer is a machine that is meant for

A) Doing quick mathematical calculations

B) Input, storage, manipulation and outputting of data

C) Electronic data processing

D) Performing repetitive tasks accurately

 Answers  .B

40. When was vacuum tube invented?

A) 1900

B) 1906

C) 1910

D) 1880

 Answers  .B

41. Which of the following produces the best quality graphics reproduction?

A) Laser printer

B) Ink jet printer

C) Plotter

D) Dot matrix printer

 Answers  .C

42. Computers with 80286 microprocessor is

A) XT computer

B) AT comptuers

C) PS/2 computer

D) None of above

 Answers  .B

43. An application suitable for sequential processing is

A) Processing of grades

B) Payroll processing

C) Both a and b

D) All of above

 Answers  .C

44. Which of the following is not processing?

A) arranging

B) manipulating

C) calculating

D) gathering

 Answers  .D

45. The digital computer was developed primarily in


B) Japan



 Answers  .C

46. Software in computer

A) Enhances the capabilities of the hardware machine

B) Increase the speed of central processing unit

C) Both of above

D) None of above

 Answers  .A

47. Today’s computer giant IBM was earlier known by different name which was changes in 1924. What was that name?

A) Tabulator Machine Co.

B) Computing Tabulating Recording Co.

C) The Tabulator Ltd.

D) International Computer Ltd.

 Answers  .B

48. Before a disk drive can access any sector record, a computer program has to provide the record’s disk address. What information does this address specify?

A) Track number

B) Sector number

C) Surface number

D) All of above

Answers  .D

49. The arranging of data in a logical sequence is called

A) Sorting

B) Classifying

C) Reproducing

D) Summarizing

 Answers  .A

50. What is the responsibility of the logical unit in the CPU of a computer?

A) To produce result

B) To compare numbers

C) To control flow of information

D) To do math’s works

 Answers  .B

51. Abacus was the first

A) electronic computer

B) mechanical computer

C) electronic calculator

D) mechanical calculator

 Answers  .D

52. If in a computer, 16 bits are used to specify address in a RAM, the number of addresses will be

A) 216

B) 65,536

C) 64K

D) Any of the above

 Answers  .B

53. Instructions and memory address are represented by

A) Character code

B) Binary codes

C) Binary word

D) Parity bit

 Answers  .B

54. The terminal device that functions as a cash register, computer terminal, and OCR reader is the:

A) Data collection terminal

B) OCR register terminal

C) Video Display terminal

D) POS terminal

 Answers  .D

55. A set of flip flops integrated together is called ____

A) Counter

B) Adder

C) Register

D) None of the above

 Answers  .C

56. People often call ______ as the brain of computer system

A) Control Unit

B) Arithmetic Logic Unit

C) Central Processing Unit

D) Storage Unit

 Answers  .C

57. Which is used for manufacturing chips?

A) Bus

B) Control unit

C) Semiconductors

D) A and b only

 Answers  .C

58. The value of each bead in heaven is

A) 1

B) 3

C) 5

D) 7

 Answers  .C

59. The first computer introduced in Nepal was

A) IBM 1400

B) IBM 1401

C) IBM 1402

D) IBM1402

 Answers  .B

60. Mnemonic a memory trick is used in which of the following language?

A) Machine language

B) Assembly language

C) High level language

D) None of above

 Answers  .B

61. Instruction in computer languages consists of



C) Both of above

D) None of above

 Answers  .C

62. Which generation of computer is still under development

A) Fourth Generation

B) Fifth Generation

C) Sixth Generation

D) Seventh Generation

 Answers  .B

63. A register organized to allow to move left or right operations is called a ____

A) Counter

B) Loader

C) Adder

D) Shift register

 Answers  .D

64. Which was the most popular first generation computer?

A) IBM 1650

B) IBM 360

C) IBM 1130

D) IBM 2700

 Answers  .A

65. Which is considered a direct entry input device?

A) Optical scanner

B) Mouse and digitizer

C) Light pen

D) All of the above

 Answers  .D

66. A set of information that defines the status of resources allocated to a process is

A) Process control


C) Register Unit

D) Process description

 Answers  .D

67. Each set of Napier’s bones consisted of ______ rods.

A) 5

B) 9

C) 11

D) 13

 Answers  .C

68. BCD is

A) Binary Coded Decimal

B) Bit Coded Decimal

C) Binary Coded Digit

D) Bit Coded Digit

 Answers  .A

69. When was the world’s first laptop computer introduced in the market and by whom?

A) Hewlett-Packard, 1980

B) Epson, 1981

C) Laplink Traveling Software Inc, 1982

D) Tandy Model-200, 1985

 Answers  .B

70. From which generation operating systems were developed?

A) First

B) Second

C) Third

D) Fourth

 Answers  .C

71. The first firm to mass-market a microcomputer as a personal computer was



C) Radio Shaks

D) Data General Corporation

 Answers  .C

72. How many address lines are needed to address each machine location in a 2048 x 4 memory chip?

A) 10

B) 11

C) 8

D) 12

 Answers  .B

73. Properly arranged data is called

A) Field

B) Words

C) Information

D) File

 Answers  .C

74. A computer consists of

A) A central processing unit

B) A memory

C) Input and output unit

D) All of the above

 Answers  .D

75. Why are vacuum tubes also called valves?

A) Because they can amplify the weak signals and make them strong

B) Because they can stop or allow the flow of current

C) Both of above

D) None of above

 Answers  .B

76. John Napier invented Logarithm in

A) 1614

B) 1617

C) 1620

D) None of above

 Answers  .A

77. An integrated circuit is

A) A complicated circuit

B) An integrating device

C) Much costlier than a single trAnswers  istor

D) Fabricated on a tiny silicon chip

 Answers  .D

78. What type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time?

A) Bus control

B) Interrupts

C) Bus arbitration

D) Status

 Answers  .C

79. Where as a computer mouse moves over the table surface, the trackball is

A) Stationary

B) Difficult to move

C) Dragged

D) Moved in small steps

 Answers  .A

80. Which of the following is used as a primary storage device?

A) Magnetic drum

B) Hard Disks

C) Floppy

D) All of above

 Answers  .A

81. Multi user systems provided cost savings for small business because they use a single processing unit to link several

A) Personal computers

B) Workstations

C) Dumb terminals

D) Mainframes

 Answers  .C

82. What are the three decisions making operations performed by the ALU of a computer?

A) Grater than

B) Less than

C) Equal to

D) All of the above

 Answers  .D

83. The word processing task associated with changing the appearance of a document is

A) Editing

B) Writing

C) Formatting

D) All of above

 Answers  .C

84. Nepal brought a computer for census of 2028 BS. This computer was of

A) first generation

B) second generation

C) third generation

D) fourth generation

 Answers  .C

85. Algorithm and Flow chart help us to

A) Know the memory capacity

B) Identify the base of a number system

C) Direct the output to a printer

D) Specify the problem completely and clearly

 Answers  .D

86. Which statement is valid about computer program?

A) It is understood by a computer

B) It is understood by programmer

C) It is understood user

D) Both a & b

 Answers  .D

87. The difference between memory and storage is that memory is _____ and storage is __

A) Temporary, permanent

B) Permanent, temporary

C) Slow, fast

D) All of above

 Answers  .A

88. When was Pascaline invented?

A) 1617

B) 1620

C) 1642

D) 1837

 Answers  .C

89. Which of the following statement is valid?

A) Lady Augusta is the first programmer

B) Ada is the daughter of Lord Byron, a famous English poet

C) ADA is a programming language developed by US Defense

D) All of above

 Answers  .D

90. A compiler is a trAnswers  lating program which

A) TrAnswers  lates instruction of a high level language into machine language

B) TrAnswers  lates entire source program into machine language program

C) It is not involved in program’s execution

D) All of above

 Answers  .D

91. What is required when more than one person uses a central computer at the same time?

A) Light pen

B) Mouse

C) Digitizer

D) Terminal

 Answers  .D

92. Which of the following is the first computer to use Stored Program Concept?




D) None of above

 Answers  .C

93. The term gigabyte refers to

A) 1024 bytes

B) 1024 kilobytes

C) 1024 megabytes

D) 1024 gigabyte

 Answers  .C

94. in which year was UK’s premier computing event called ?The which computer? started?

A) 1980

B) 1985

C) 1986

D) 1987

 Answers  .A

95. Once you load the suitable program and provide required data, computer does not need human intervention. This feature is known as

A) Accuracy

B) Reliability

C) Versatility

D) Automatic

 Answers  .D

96. What is a brand?

A) The name of companies that made computers

B) The name of product a company gives to identify its product in market

C) A name of class to indicate all similar products from different companies

D) All of above

 Answers  .B

97. Machine language is

A) Machine dependent

B) Difficult to program

C) Error prone

D) All of above

 Answers  .D

98. A byte consists of

A) One bit

B) Four bits

C) Eight bits

D) Sixteen bits

 Answers  .C

99. Modern Computers are very reliable but they are not

A) Fast

B) Powerful

C) Infallible

D) Cheap

 Answers  .C

100. What is the date when Babbage conceived Analytical engine

A) 1642

B) 1837

C) 1880

D) 1850

 Answers  .B