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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