100+ Computer Multiple Choice questions (MCQs) for Competitive Exams [Fundamentals-Advanced] » GADGET SKOOL

100+ Computer Multiple Choice questions (MCQs) for Competitive Exams [Fundamentals-Advanced]

Here, we have listed the most important top 100+ computer fundamental MCQ questions with answers for your regular practice.

These computer-fundamental multiple-choice questions will always ask in different competitive examinations like IBPS, RRB, Group D, SSC CGL, and many more.

These MCQs will help you to gain an understanding of the basic as well as advanced concepts of computer fundamentals. So, prepare whole heartily.

100+ Computer Multiple Choice questions (MCQs):

These are some of the most commonly asked questions that you need to practice, before trying to attempt any competitive exams. The answers to these questions will be mentioned at the bottom of the article.

  1. What is the full form of CPU?
    a) Central Processing Unit
    b) Central Programming Unit
    c) Computer Processing Unit
    d) Computer Programming Unit
  2. What is the full form of RAM?
    a) Random Access Memory
    b) Read Access Memory
    c) Random Access Module
    d) Read Access Module
  3. What is the full form of ROM?
    a) Read Only Memory
    b) Random Only Memory
    c) Read Only Module
    d) Random Only Module
  4. What is the full form of BIOS?
    a) Basic Input Output System
    b) Basic Input Output Software
    c) Basic Input Output Service
    d) Basic Input Output Support
  5. Which of the following is a primary storage device?
    a) Hard Disk Drive
    b) CD-ROM
    c) USB Drive
    d) RAM
  6. Which of the following is a secondary storage device?
    a) RAM
    b) ROM
    c) CD-ROM
    d) CPU
  7. Which of the following is a volatile memory?
    a) ROM
    b) EEPROM
    c) Flash Memory
    d) RAM
  8. Which of the following is a non-volatile memory?
    a) RAM
    b) ROM
    c) Cache Memory
    d) Virtual Memory
  9. Which of the following is a removable storage device?
    a) Hard Disk Drive
    b) Solid State Drive
    c) CD-ROM
    d) All of the above
  10. Which of the following is a non-removable storage device?
    a) CD-ROM
    b) DVD-ROM
    c) Hard Disk Drive
    d) All of the above
  11. Which of the following is a digital input device?
    a) Printer
    b) Scanner
    c) Speaker
    d) Monitor
  12. Which of the following is a digital output device?
    a) Mouse
    b) Keyboard
    c) Printer
    d) Scanner
  13. Which of the following is a pointing device?
    a) Keyboard
    b) Mouse
    c) Scanner
    d) Printer
  14. Which of the following is an output device?
    a) Keyboard
    b) Monitor
    c) Mouse
    d) Scanner
  15. Which of the following is an input device?
    a) Monitor
    b) Printer
    c) Mouse
    d) Scanner
  16. Which of the following is a programming language?
    a) Microsoft Word
    b) C++
    c) Adobe Photoshop
    d) Internet Explorer
  17. Which of the following is a high-level language?
    a) Assembly Language
    b) Machine Language
    c) C Language
    d) All of the above
  18. Which of the following is a low-level language?
    a) Assembly Language
    b) Machine Language
    c) C Language
    d) All of the above
  19. Which of the following is a markup language?
    a) HTML
    b) Java
    c) C++
    d) Python
  20. Which of the following is a scripting language?
    a) Java
    b) Python
    c) C++
    d) HTML
  21. Which of the following is a network topology?
    a) Bus Topology
    b) Mesh Topology
    c) Star Topology
    d) All of the above
  22. Which of the following is a network protocol?
    a) HTTP
    b) TCP/IP
    c) DNS
    d) All of the above
  23. Which of the following is a network device?
    a) Router
    b) Printer
    c) Scanner
    d) Keyboard
  24. Which of the following is a web browser?
    a) Google Chrome
    b) Microsoft Word
    c) Adobe Photoshop
    d) Internet Explorer
  25. What is a computer?
    a) Electronic device
    b) Electro mechanical device
    c) Mechanical device
    d) None of the above
  26. What is the primary component of a computer?
    a) Central processing unit (CPU)
    b) Keyboard
    c) Monitor
    d) Mouse
  27. What does CPU stand for?
    a) Computer Processing Unit
    b) Central Processing Unit
    c) Central Power Unit
    d) Computer Power Unit
  28. What is a motherboard?
    a) A type of CPU
    b) A type of hard disk
    c) A circuit board that connects the CPU, memory, and other hardware components
    d) A type of software
  29. What is the function of an operating system?
    a) To manage hardware resources
    b) To provide a user interface
    c) To run applications
    d) All of the above
  30. What is the default file extension of a Microsoft Word document?
    a) .docx
    b) .txt
    c) .pdf
    d) .rtf
  31. Which of the following is not an internet browser?
    a) Chrome
    b) Firefox
    c) Safari
    d) Windows
  32. What is a URL?
    a) Uniform Resource Locator
    b) Universal Resource Locator
    c) Unique Resource Locator
    d) None of the above
  33. What is the difference between a virus and a worm?
    a) A virus requires human interaction to spread, while a worm can spread automatically
    b) A virus can be removed easily, while a worm is difficult to remove
    c) A virus can infect only one computer, while a worm can infect multiple computers
    d) None of the above
  34. What is a firewall?
    a) A hardware device that protects a network from unauthorized access
    b) A software program that protects a computer from malware
    c) A hardware device that connects two or more networks together
    d) A software program that allows remote access to a computer
  35. What is a router?
    a) A hardware device that connects two or more networks together
    b) A software program that allows remote access to a computer
    c) A hardware device that protects a network from unauthorized access
    d) A software program that protects a computer from malware
  36. What is a modem?
    a) A device that connects a computer to a network
    b) A device that converts digital signals to analog signals and vice versa
    c) A device that protects a computer from malware
    d) A software program that allows remote
  37. Which of the following is a hardware component of a computer?
    a) Compiler
    b) Operating system
    c) Keyboard
    d) Spreadsheet
  38. Which of the following is a software component of a computer?
    a) RAM
    b) CPU
    c) Hard disk
    d) Word processor
  39. Which of the following is not an input device?
    a) Mouse
    b) Keyboard
    c) Monitor
    d) Scanner
  40. Which of the following is not a storage device?
    a) Hard disk
    b) CD-ROM
    c) RAM
    d) USB drive
  41. Which of the following is not a programming language?
    a) Java
    b) C++
    c) Python
    d) Photoshop
  42. Which of the following is not a type of computer network?
    a) LAN
    b) WAN
    c) VPN
    d) MAN
  43. Which of the following is not an operating system?
    a) Windows
    b) Linux
    c) Mac OS
    d) Microsoft Office
  44. Which of the following is a type of computer virus?
    a) Trojan
    b) Worm
    c) Spyware
    d) All of the above
  45. Which of the following is a type of computer memory that is volatile?
    a) RAM
    b) ROM
    c) Flash memory
    d) Hard disk
  46. Which of the following is not a type of computer processor?
    a) Intel Core i7
    b) AMD Ryzen 5
    c) NVIDIA GeForce RTX 3080
    d) ARM Cortex-A78
  47. Which of the following is a type of computer port?
    a) USB
    b) HDMI
    c) Ethernet
    d) All of the above
  48. Which of the following is a type of computer input/output device?
    a) Printer
    b) Scanner
    c) Webcam
    d) All of the above
  49. Which of the following is not a type of computer monitor?
    a) CRT
    b) LCD
    c) LED
    d) DVD
  50. Which of the following is a type of computer keyboard layout?
    a) QWERTY
    b) ABCDEF
    c) 123456
    d) None of the above
  51. Which of the following is a type of computer file format?
    a) PDF
    b) DOCX
    c) MP3
    d) All of the above
  52. Which of the following is a type of computer network topology?
    a) Star
    b) Mesh
    c) Ring
    d) All of the above
  53. Which of the following is a type of computer algorithm?
    a) Bubble sort
    b) QuickTime
    c) Apple pie
    d) None of the above
  54. Which of the following is a type of computer memory that is non-volatile?
    a) RAM
    b) ROM
    c) Hard disk
    d) All of the above
  55. Which of the following is a type of computer programming paradigm?
    a) Object-oriented
    b) Procedural
    c) Functional
    d) All of the above
  56. Which of the following is a type of computer software license?
    a) Open source
    b) Closed source
    c) Freeware
    d) All of the above
  57. Which of the following is a programming language?
    a) RAM
    b) CPU
    c) Java
    d) Hard disk
  58. Which of the following is not a programming language?
    a) Python
    b) C++
    c) HTML
    d) Microsoft Excel
  59. What is the purpose of a compiler in programming?
    a) To execute the program
    b) To translate the program into machine code
    c) To debug the program
    d) To store the program
  60. What is the purpose of an interpreter in programming?
    a) To execute the program
    b) To translate the program into machine code
    c) To debug the program
    d) To store the program
  61. Which of the following is an example of a high-level programming language?
    a) Assembly language
    b) C++
    c) Machine language
    d) None of the above
  62. Which of the following is an example of a low-level programming language?
    a) Python
    b) C++
    c) Machine language
    d) None of the above
  63. Which of the following is a data type in programming?
    a) Compiler
    b) Variable
    c) Function
    d) Library
  64. Which of the following is not a data type in programming?
    a) Integer
    b) Float
    c) Double
    d) Compiler
  65. Which of the following is a control structure in programming?
    a) Data type
    b) Loop
    c) Function
    d) Compiler
  66. Which of the following is not a control structure in programming?
    a) If-else statement
    b) Loop
    c) Function
    d) Switch statement
  67. Which of the following is a data structure in programming?
    a) Array
    b) Function
    c) Compiler
    d) Variable
  68. Which of the following is not a data structure in programming?
    a) Variable
    b) Stack
    c) Queue
    d) Linked list
  69. Which of the following is a programming paradigm?
    a) Object-oriented
    b) Structured
    c) Functional
    d) All of the above
  70. Which of the following is not a programming paradigm?
    a) Object-oriented
    b) Structured
    c) Imperative
    d) Compiler
  71. Which of the following is a programming concept?
    a) Inheritance
    b) Loop
    c) Function
    d) All of the above
  72. Which of the following is not a programming concept?
    a) Inheritance
    b) Encapsulation
    c) Polymorphism
    d) Compiler
  73. Which of the following is a method of debugging a program?
    a) Unit testing
    b) Integration testing
    c) Regression testing
    d) All of the above
  74. Which of the following is not a method of debugging a program?
    a) Breakpoint
    b) Stepping through code
    c) Rebooting the computer
    d) Print statements
  75. Which of the following is a way to improve program efficiency?
    a) Code optimization
    b) Code refactoring
    c) Code review
    d) All of the above
  76. Which of the following is not a way to improve program efficiency?
    a) Adding comments to code
    b) Reducing redundant code
    c) Using efficient data structures
    d) Code optimization
  77. Which of the following is not an advantage of using arrays?
    a) Efficient access to elements
    b) Easy to manipulate and process large amounts of data
    c) Supports only homogeneous data
    d) Can be easily resized
  78. What is the index of the first element in an array?
    a) 0
    b) 1
    c) -1
    d) None of the above
  79. Which of the following is an example of a one-dimensional array?
    a) [[1, 2], [3, 4]]
    b) [1, 2, 3, 4]
    c) [1, [2, 3], 4]
    d) None of the above
  80. Which of the following is an example of a two-dimensional array?
    a) [1, 2, 3, 4]
    b) [[1, 2], [3, 4]]
    c) [1, [2, 3], 4]
    d) None of the above
  81. What is the size of an array?
    a) The number of elements it contains
    b) The number of bytes it occupies in memory
    c) The number of dimensions it has
    d) None of the above
  82. What is the time complexity of accessing an element in an array?
    a) O(n)
    b) O(log n)
    c) O(1)
    d) O(n^2)
  83. What is the time complexity of searching an element in an unsorted array?
    a) O(n)
    b) O(log n)
    c) O(1)
    d) O(n^2)
  84. What is the time complexity of searching an element in a sorted array using binary search?
    a) O(n)
    b) O(log n)
    c) O(1)
    d) O(n^2)
  85. What is the time complexity of inserting an element in the middle of an array?
    a) O(n)
    b) O(log n)
    c) O(1)
    d) O(n^2)
  86. What is the time complexity of deleting an element from the middle of an array?
    a) O(n)
    b) O(log n)
    c) O(1)
    d) O(n^2)
  87. What is the maximum number of elements that can be stored in an array in C programming language?
    a) 32767
    b) 65535
    c) 2147483647
    d) None of the above
  88. What is the syntax to declare an array in C programming language?
    a) array[] = {1, 2, 3, 4}
    b) int array[4] = {1, 2, 3, 4}
    c) int array = {1, 2, 3, 4}
    d) None of the above
  89. What is the syntax to access the nth element of an array in C programming language?
    a) array[n]
    b) array(n)
    c) array{n}
    d) None of the above
  90. Which of the following is not a function in the array module of Python programming language?
    a) array()
    b) append()
    c) extend()
    d) remove()
  91. What is the syntax to declare an array in Java programming language?
    a) array[] = {1, 2, 3, 4}
    b) int[] array = {1, 2, 3, 4}
    c) int array = {1, 2, 3, 4}
    d) None of the above
  92. What is the syntax to access the nth element of an array in Java programming language?
    a) array[n]
    b) array(n)
    c) arrayn
    d) array”n”
  93. Java is a __ programming language.
    a) Compiled
    b) Interpreted
    c) Both a and b
    d) None of the above
  94. Java was developed by __.
    a) James Gosling
    b) Bill Gates
    c) Steve Jobs
    d) None of the above
  95. Java was originally developed for __.
    a) Personal computers
    b) Web development
    c) Embedded systems
    d) None of the above
  96. Which of the following is not a feature of Java?
    a) Platform independence
    b) Object-oriented programming
    c) Strong typing
    d) Pass by reference
  97. Which of the following is not a data type in Java?
    a) int
    b) double
    c) string
    d) boolean
  98. What is the entry point for a Java program?
    a) Main method
    b) Start method
    c) Run method
    d) None of the above
  99. Which of the following keywords is used to define a class in Java?
    a) class
    b) def
    c) function
    d) None of the above
  100. Which of the following keywords is used to define a method in Java?
    a) method
    b) def
    c) function
    d) None of the above
Computer fundamental MCQ

:Answers:

1a) Central Processing Unit
2a) Random Access Memory
3a) Read Only Memory
4a) Basic Input Output System
5d) RAM
6c) CD-ROM
7d) RAM
8b) ROM
9d) All of the above
10c) Hard Disk Drive
11b) Scanner
12c) Printer
13b) Mouse
14b) Monitor
15d) Scanner
16b) C++
17c) C Language
18a) Assembly Language
19a) HTML
20b) Python
21d) All of the above
22d) All of the above
23a) Router
24a) Google Chrome
25a) Electronic device
26a) Central processing unit (CPU)
27b) Central Processing Unit
28c) A circuit board that connects the CPU, memory, and other hardware components
29d) All of the above
30a) .docx
31d) Windows
32a) Uniform Resource Locator
33a) A virus requires human interaction to spread, while a worm can spread automatically.
34a) A hardware device that protects a network from unauthorized access
35a) A hardware device that connects two or more networks together
36b) A device that converts digital signals to analog signals and vice versa
37c) Keyboard
38d) Word processor
39c) Monitor
40c) RAM
41d) Photoshop
42d) MAN
43d) Microsoft Office
44d) All of the above (Trojan, Worm, Spyware)
45a) RAM
46c) NVIDIA GeForce RTX 3080
47d) All of the above (USB, HDMI, Ethernet)
48d) All of the above (Printer, Scanner, Webcam)
49d) DVD
50a) QWERTY
51d) All of the above (PDF, DOCX, MP3)
52d) All of the above (Star, Mesh, Ring)
53a) Bubble sort
54b) ROM
55d) All of the above
56d) All of the above
57c) Java
58d) Microsoft Excel
59b) To translate the program into machine code
60a) To execute the program
61b) C++
62c) Machine language
63b) Variable
64d) Compiler
65b) Loop
66a) If- else statement
67a) Array
68d) Compiler
69d) All of the above (Object-oriented, Structured, and Functional)
70d) Compiler
71d) All of the above (Inheritance, Loop, and Function)
72d) Compiler
73d) All of the above (Unit testing, Integration testing, and Regression testing)
74c) Rebooting the computer
75d) All of the above (Code optimization, Code refactoring, and Code review)
76a) Adding comments to code
77d) Can be easily resized
78a) 0
79b) [1, 2, 3, 4]
80b) [[1, 2], [3, 4]]
81a) The number of elements it contains
82c) O(1)
83a) O(n)
84b) O(log n)
85a) O(n)
86a) O(n)
87a) 32767 (assuming a 2-byte integer)
88b) int array[4] = {1, 2, 3, 4}
89a) array[n]
90d) remove()
91b) int[] array = {1, 2, 3, 4}
92a) array[n]
93c) Both a and b
94a) James Gosling
95c) Embedded systems
96d) Pass by reference
97c) string
98a) Main method
99a) class
100d) None of the above

Also Read: Basic Computer Knowledge Questions & Answers(Quiz)

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About Chinmay kumar

Diving deep into the digital realm, he's a tech enthusiast with an insatiable curiosity for cutting-edge gadgets and emerging innovations. With a knack for staying ahead of the curve, he immerses himself in the ever-evolving world of technology, constantly scouring the vast expanse of the internet to uncover the latest trends and breakthroughs. As a voracious reader, he devours knowledge, fueling his passion for exploring new frontiers and pushing the boundaries of possibility in the digital age.

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