Note: Computer Solved Past Papers MCQs Set-1 comprises 100 important Computer MCQs. These MCQs are taken from different Past Papers and helpful for different Computer related posts like Stenotypist, Computer Operator etc.

 

1. A collection of system programs that controls and coordinates the overall operations of a computer system is called ____.

A. System Software
B. Operating System
C. Utility Program
D. Device driver

Answer

Correct Answer: B. Operating System

 

2. The term “Computer” is derived from ____.

A. Latin
B. German
C. French
D. Arabic

Answer

Correct Answer: A. Latin 

 

3. WAN stands for ____.

A. Wide Array
B. Wireless Area Network
C. Wide Area Network
D. Wap Area Network

Answer

Correct Answer: C. Wide Area Network 

 

4. What is the main difference between a mainframe and a supercomputer?

A. Supercomputer is much smaller than mainframe computers
B. Supercomputers are focused to execute few programs as fast as possible while the mainframe uses its power to execute as many programs currently
C. Supercomputer is much larger than mainframe computers
D. Supercomputers are focused to execute as many programs as possible while the mainframe uses its power to execute few programs as fast as possible

Answer

Correct Answer: B. Supercomputers are focused to execute few programs as fast as possible while the mainframe uses its power to execute as many programs currently 

 

5. _____ is called the father of digital Modern computers.

A. Blaise Pascal
B. Leibnitz
C. Charles Babbage
D. J.H Muller

Answer

Correct Answer: C. Charles Babbage 

 

6. Who is the father of Computer Science?

A. Charles Baggage
B. Simur Cray
C. Allen Turing
D. Augusta Adams

Answer

Correct Answer: C. Allen Turing 

 

7. A CPU contains:

A. An arithmetic logic unit and a card reader
B. A control unit and an arithmetic logic unit
C. A card reader and printing device
D. An analytical engine and a control unit

Answer

Correct Answer: B. A control unit and an arithmetic logic unit 

 

8. What type of operating system MS-DOS is?

A. Graphical User Interface
B. Command Line Interface
C. Multitasking
D. Menu Driven Interface

Answer

Correct Answer: B. Command Line Interface 

 

9. Which technology is used in compact disks?

A. Mechanical
B. Electrical
C. Electro Magnetic
D. Laser

Answer

Correct Answer: D. Laser 

 

10. 1 Gigabyte is equal to ____.

A. 1024 bits
B. 1024 megabytes
C. 1024 kilobytes
D. 1000 megabytes

Answer

Correct Answer: B. 1024 megabytes 

 

11. The brain of any computer system is ______.

A. ALU
B. Memory
C. CPU
D. Control Unit

Answer

Correct Answer: C. CPU 

 

12. Which of the following are components of the Central Processing Unit (CPU)?

A. Arithmetic Logic Unit, Mouse
B. Arithmetic Logic unit, Control Unit
C. Arithmetic Logic Unit, Integrated Circuits
D. Control Unit, Monitor

Answer

Correct Answer: B. Arithmetic Logic unit, Control Unit 

 

13. Analog computer works on the supply of:

A. Continuous electrical pulses
B. Electrical pulses but not continuous
C. Magnetic strength
D. None of them

Answer

Correct Answer: A. Continuous electrical pulses 

 

14. Which one is a Digital device, select from the choices below?

A. Clock with a dial and two hands
B. Automobile speed meter
C. Digital Clock
D. All of them

Answer

Correct Answer: C. Digital Clock 

 

15. The computer that processes both analog and digital Called:

A. Digital computer
B. Hybrid computer
C. Analog computer
D. Mainframe computer

Answer

Correct Answer: B. Hybrid computer

 

16. CD_ROM stands for ____.

A. Compact Data Read Only Memory
B. Compactable Read Only Memory
C. Compactable Disk Read Only Memory
D. Compact Disk Read Only Memory

Answer

Correct Answer: D. Compact Disk Read Only Memory 

 

17. The basic operation performed by a computer is _____.

A. Logical operations
B. Arithmetic operations
C. Storage operations
D. All of the above

Answer

Correct Answer: D. All of the above 

 

18. Who is the father of the Internet?

A. Charles baggage
B. Dennis Riche
C. Vint Cerf
D. Martin Cooper

Answer

Correct Answer: C. Vint Cerf 

 

19. If a computer has more than one processor then it is known as ____.

A. Uni-processor
B. Multi-processor
C. Multi-threaded
D. Multi-programming

Answer

Correct Answer: B. Multi-processor 

 

20. A light-sensitive device that converts drawing, printed text, or other images into digital form is ___.

A. Keyboard
B. Scanner
C. OMR
D. None of these

Answer

Correct Answer: B. Scanner 

 

21. WWW stands for _____.

A. World Whole Web
B. Wide World Web
C. Web World Wide
D. World Wide Web

Answer

Correct Answer: D. World Wide Web 

 

22. ALU is _____.

A. Array Logic Unit
B. Application Logic Unit
C. Arithmetic Logic Unit
D. None of these

Answer

Correct Answer: C. Arithmetic Logic Unit 

 

23. VGA is _____.

A. Visual Graphics Array
B. Video Graphics Array
C. Volatile Graphics Array
D. Video Graphics Adaptor

Answer

Correct Answer: B. Video Graphics Array 

 

24. MSI stands for _____.

A. A Medium Scale Integrated Circuits
B. Medium System Integrated Circuits
C. Medium Scale Intelligent Circuit
D. Medium System Intelligent Circuit

Answer

Correct Answer: A. A Medium Scale Integrated Circuits 

 

25. Which of the following controls the process of interaction between the user and the operating system?

A. Language Translator
B. Platform
C. User Interface
D. Screen Saver

Answer

Correct Answer: C. User Interface 

 

26. The first computer was programmed using:

A. Assembly Language
B. Machine Language
C. Source Code
D. Object Code

Answer

Correct Answer: B. Machine Language 

 

27. _____ is a combination of hardware and software that facilitates the sharing of information between computing devices?

A. Peripheral
B. Expansion board
C. Network
D. Digital Devices

Answer

Correct Answer: C. Network 

 

28. Coded entries which are used to gain access to a computer system are called ____.

A. Entry codes
B. Passwords
C. Security Commands
D. Codewords

Answer

Correct Answer: B. Passwords 

 

29. Which of the following statement is true about Minicomputer and Microcomputer?

A. Microcomputer works faster than Minicomputer
B. Speed of both the computers is the same
C. The speed of both of these computers cannot be compared with the speed of advanced
D. Minicomputer works faster than Minicomputer

Answer

Correct Answer: A. Microcomputer works faster than Minicomputer 

 

30. You can organize files by storing them in ______.

A. Archives
B. Folders
C. Indexes
D. Lists

Answer

Correct Answer: B. Folders 

 

31. What type of resource is most likely to be a shared common resource in a Computer Network?

A. Printers
B. Speakers
C. Floppy Disk
D. Keyboard

Answer

Correct Answer: A. Printers 

 

32. Which device is required for the internet connection?

A. Cd Drive
B. NIC card
C. Modem
D. Joystick

Answer

Correct Answer: C. Modem 

 

33. What is a light pen?

A. A Mechanical device
B. Optical Input device
C. Electronic Output device
D. Optical output device

Answer

Correct Answer: B. Optical Input Device 

 

34. UNIVAC is _____.

A. Universal Automatic Computer
B. Universal Array Computer
C. Unique Automatic computer
D. Unvalued Automatic computer

Answer

Correct Answer: A. Universal Automatic Computer 

 

35. Which statement describes “Hackers”?

A. All have the same motive
B. Break into other people’s computer
C. May legally break into computers as long as they do not do any damage
D. Are people who are allergic to computer

Answer

Correct Answer: B. Break into other people’s computer 

 

36. What type of computer are client computers (most of the time) in a client-server system?

A. Mainframe
B. Mini-Computer
C. Micro-Computer
D. PDA

Answer

Correct Answer: C. Micro Computer 

 

37. A computer cannot “boot” if it does not have the ______.

A. Compiler
B. Loader
C. Operating System
D. Assembler

Answer

Correct Answer: C. Operating System 

 

38. The amount of vertical space between lines of text in a document is called:

A. Line Spacing
B. Double Space
C. Single Space
D. Vertical Spacing

Answer

Correct Answer: A. Line Spacing 

 

39. The capacity of a 3.5-inch floppy disk was ______.

A. 1.40 GB
B. 1.44 GB
C. 1.40 MB
D. 1.44 MB

Answer

Correct Answer: D. 1.44 MB 

 

40. MICR stands for _____.

A. Magnetic Ink Character Reader
B. Magnetic Ink Code Reader
C. Magnetic Ink Cases Reader
D. None of these

Answer

Correct Answer: A. Magnetic Ink Character Reader 

 

41. EBCDIC stands for _____.

A. Extended Bit Code Decimal Interchange Code
B. Extended Binary Coded Decimal Interchange Code
C. Extended Bit case Decimal Interchange Code
D. Extended Binary Case Decimal Interchange Code

Answer

Correct Answer: B. Extended Binary Coded Decimal Interchange Code 

 

42. Which of the following is a part of the Central Processing Unit?

A. Printer
B. Keyboard
C. Mouse
D. Arithmetic Logic Unit

Answer

Correct Answer: D. Arithmetic Logic Unit 

 

43. Which of the following is not anti-virus Software?

A. Avira
B. Oracle
C. McAfee
D. Kaspersky

Answer

Correct Answer: B. Oracle 

 

44. What does DMA stand for?

A. Distinct Memory Access
B. Direct Memory Access
C. Direct Module Access
D. Direct Memory Allocation

Answer

Correct Answer: B. Direct Memory Access

 

45. Which of the following is a storage device?

A. Tape
B. Hard Disk
C. Floppy Disk
D. All of the above

Answer

Correct Answer: D. All of the above 

 

46. When did Napier develop Logarithm?

A. 1416
B. 1614
C. 1641
D. 1804

Answer

Correct Answer: B. 1614 

 

47. MIS is designed to provide the information needed for effective decision-making by:

A. Consumers
B. Workers
C. Foremen
D. Managers

Answer

Correct Answer: D. Managers 

 

48. ASCII stands for _____.

A. American Stable Code For Informational Interchange
B. American Standard Case For Institutional Interchange
C. American Standard Code For Information Interchange
D. American Standard Code for Interchange Information

Answer

Correct Answer: C. American Standard Code for Information Interchange 

 

49. Junk e-mail is also called:

A. Spam
B. Spoof
C. Sniffer script
D. Spool

Answer

Correct Answer: A. Spam 

 

50. Example of non-numeric data is ______.

A. Employee Address
B. Examination Score
C. Bank balance
D. All of the above

Answer

Correct Answer: A. Employee Address 

 

51. What is an embedded system?

A. The program which arrives by being wrapped inbox
B. The program which is the permanent part of the computer
C. The computer which is the part of a larger system or machine
D. The computer and software system that controls the machine

Answer

Correct Answer: C. The computer which is the part of a larger system or machine 

 

52. The First page of the website is termed:

A. Homepage
B. Index
C. Java Script
D. Bookmark

Answer

Correct Answer: A. Homepage 

 

53. When a file is saved for the first time:

A. A copy is automatically printed
B. It must be given name to identify it
C. It does not need a name
D. It only needs a name if it is not going to be printed

Answer

Correct Answer: B. It must be given name to identify it 

 

54. Where are data and programmes stored when the processor uses them?

A. Secondary Memory
B. Main Memory
C. Disk Memory
D. Programme Memory

Answer

Correct Answer: B. Main Memory 

 

55. ____ represents raw facts, whereas ____ is data made meaningful.

A. Information, Reporting
B. Data, Information
C. Information, Bits
D. Records, Bytes

Answer

Correct Answer: B. Data, Information 

 

56. What characteristic of read-only memory (ROM) makes it useful?

A. ROM information can be easily updated
B. Data in ROM is non-volatile, that is it remains there even without electrical power.
C. Rom provide very large amounts of inexpensive data storage
D. ROM chips are easily swapped between different brands of computers

Answer

Correct Answer: B. Data in ROM is non-volatile that is it remains there even without electrical power 

 

57. What do you call the programs that are used to find out possible faults and their causes?

A. Operating system extensions
B. Cookies
C. Diagnostic Software
D. Boot Diskettes

Answer

Correct Answer: C. Diagnostic Software

 

58. Which programming languages are classified as low-level languages?

A. BASIC, COBOL, FORTRAN
B. Prolong
C. C, C++
D. Assembly Language

Answer

Correct Answer: D. Assembly Language 

 

59. IMB 1401 is ______.

A. First Generation Computer
B. Second Generation Computer
C. Third Generation Computer
D. Fourth Generation Computer

Answer

Correct Answer: B. Second Generation Computer 

 

60. Chief component of the first-generation computer was _____.

A. Transistors
B. Integrated Circuits
C. Vacuum Tubes and Valves
D. None of these

Answer

Correct Answer: C. Vacuum Tubes and Valves 

 

61. Which of the following is first generation computer?

A. UNIVAC
B. IMB-1401
C. CDC-1604
D. ICL-2900

Answer

Correct Answer: A. UNIVAC 

 

62. Second-generation computers were developing during _____.

A. 1949 to 1955
B. 1965 to 1970
C. 1956 to 1965
D. 1970 to 1990

Answer

Correct Answer: C. 1956 to 1965 

 

63. The computer size was very large in:

A. First Generation
B. Second Generation
C. Third Generation
D. Fourth Generation

Answer

Correct Answer: A. First Generation 

 

64. Microprocessor as switching devices is for _____ generation computer.

A. First Generation
B. Second Generation
C. Third Generation
D. Fourth Generation

Answer

Correct Answer: D. Fourth Generation 

 

65. Which of the following devices can be used to directly image printed text?

A. OCR
B. MICR
C. OMR
D. All of the above

Answer

Correct Answer: A. OCR 

 

66. 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 the above

Answer

Correct Answer: A. Dot per inch 

 

67. In Analogue computer _____.

A. Input is first converted to digital form
B. Input is never converted to digital form
C. Output is displayed in digital form
D. All of the above

Answer

Correct Answer: B. Input is never converted to digital form 

 

68. In the latest generation computers, the instructions are executed _____.

A. Parallel Only
B. Sequentially only
C. Both sequentially and parallel
D. None of these

Answer

Correct Answer: C. Both sequentially and parallel 

 

69. A small or intelligent device is so-called because it contains within in a:

A. Computer
B. Microcomputer
C. Programmable
D. Sensor

Answer

Correct Answer: D. Sensor 

 

70. A fault in a computer program that prevents it from working correctly is known as ____.

A. Boot
B. Biff
C. Bug
D. Strap

Answer

Correct Answer: C. Bug 

 

71. 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. Worm
C. Vice
D. Lice

Answer

Correct Answer: B. Worm 

 

72. Unwanted repetitious messages, such as unsolicited bulk e-mail are known as:

A. Spam
B. Trash
C. Calibri
D. Courier

Answer

Correct Answer: A. Spam 

 

73. DOS stands for:

A. Digital Open System
B. Disk Operating System
C. Disk Operating Session
D. Digital Operating System

Answer

Correct Answer: B. Disk Operating System 

 

74. Who is the current CEO of Microsoft?

A. Babbage
B. Bill Clinton
C. Bill Gates
D. Satya Nadella

Answer

Correct Answer: D. Satya Nadella 

 

75. Which of the following are input devices?

A. Keyboard
B. Mouse
C. Card reader
D. All of these

Answer

Correct Answer: D. All of these 

 

76. Who designed the first electronics computer?

A. Van-Neumann
B. Joseph M. Jacquard
C. J. Presper Eckert and John W mauchly
D. All of these

Answer

Correct Answer: C. J. Presper Eckert and John W Mauchly 

 

77. Who invented the high-level language “C”?

A. Dennis M. Ritchie
B. Niklaus Wirth
C. Seymour Papert
D. Donald Kunth

Answer

Correct Answer: A. Dennis M. Ritchie 

 

78. Personnel, who designed, program, operate, and maintain computer equipment refers to:

A. Console- operator
B. Programmer
C. Peopleware
D. System Analyst

Answer

Correct Answer: C. Peopleware 

 

79. An error in software or hardware is called a bug. What is the alternative computer jargon for it?

A. Leech
B. Glitch
C. Slug
D. Squid

Answer

Correct Answer: B. Glitch 

 

80. Modern Computer is very reliable but they are not:

A. Fast
B. Powerful
C. Infallible
D. Cheap

Answer

Correct Answer: C. Infallible 

 

81. Personal Computers use a number of chips mounted on the main circuit board. What is the common name for such boards?

A. Daughter Board
B. Mother Board
C. Father Board
D. Breadboard

Answer

Correct Answer: B. Motherboard 

 

82. 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

Correct Answer: B. which is assigned one and only one task 

 

83. The system unit of a personal computer typically contains all of the following except?

A. Microprocessor
B. Disk Controller
C. Serial Interface
D. Modem

Answer

Correct Answer: D. Modem 

 

84. A computer program that converts an entire program into machine language is called:

A. Interpreter
B. Simulator
C. Compiler
D. Commander

Answer

Correct Answer: C. Compiler 

 

85. A computer program that translates one program instructions at a time into machine language is called:

A. Interpreter
B. CPU
C. Compiler
D. Simulator

Answer

Correct Answer: A. Interpreter 

 

86. Examples of output devices are:

A. Screen
B. Printer
C. Speaker
D. All of these

Answer

Correct Answer: D. All of these 

 

87. Which of the following is also known as the brain of the Computer?

A. Control Unit
B. Arithmetic Logic Unit
C. Central Processing Unit
D. Monitor

Answer

Correct Answer: C. Central Processing Unit 

 

88. ____ Translated and executes a program at run timeline by line.

A. Compiler
B. Interpreter
C. Linker
D. Loader

Answer

Correct Answer: B. Interpreter 

 

89. RAM stands for:

A. Random origin money
B. Random Only Memory
C. Read-Only Memory
D. Random Access Memory

Answer

Correct Answer: D. Random Access Memory 

 

90. 1 byte = ______.

A. 8 bits
B. 4 bits
C. 2 bits
D. 9 bits

Answer

Correct Answer: D. Random Access Memory 

 

91. The device used to carry digital data on an analog line is called ____.

A. Modem
B. Multiplexer
C. Modulator
D. Demodulator

Answer

Correct Answer: A. Modem 

 

92. BIOS stands for:

A. Binary Input Output System
B. Basic input Off System
C. Basic Input-output system
D. All of these

Answer

Correct Answer: C. Basic Input-output system 

 

93. Which of the following are functions of an operating system?

A. Allocated resources
B. Monitors Activities
C. Manages disks and files
D. All of these

Answer

Correct Answer: D. All of these 

 

94. To move a copy of a file from one computer to another over a communication channel is called:

A. File transfer
B. File encryption
C. File modification
D. File copying

Answer

Correct Answer: A. File Transfer 

 

95. The primary function of the ____ is to set up the hardware and load and start an operating system?

A. System Programs
B. BIOS
C. CP
D. Memory

Answer

Correct Answer: B. BIOS 

 

96. What kind of memory is both static and non-volatile?

A. RAM
B. ROM
C. BIOS
D. CACHE

Answer

Correct Answer: B. ROM 

 

97. The instructions that tell a computer how to carry out the processing tasks are referred to as computer?

A. Program
B. Processor
C. Input devices
D. Memory Modules

Answer

Correct Answer: A. Programs 

 

98. An area of a computer that temporarily holds data waiting to be processed is:

A. CPU
B. Memory
C. Storage
D. File

Answer

Correct Answer: B. Memory 

 

99. ____ is the key to close a selection drop-down list; cancel a command and close a dialog box.

A. TAB
B. SHIFT
C. ESC
D. F10

Answer

Correct Answer: C. ESC 

 

100. ____ is the functional key to display saves as a box.

A. F9
B. F10
C. F8
D. F12

Answer

Correct Answer: D. F12 

 

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