Computer MCQ for competitive exams Set 1
Computer MCQ for competitive exams are an integral part of our modern world, and understanding their basics is crucial in today’s digital age. This article presents 200 multiple-choice questions (MCQs) that cover fundamental concepts related to computers. Test your knowledge and learn more about the basics of computers!
Computer MCQ for competitive exams Set 1
MCQ.1. What is the primary function of a computer?
a) Data storage
b) Data processing
c) Data communication
d) Data retrieval
Answer: b) Data processing
MCQ.2. Which component of a computer is responsible for performing arithmetic and logical operations?
a) Central Processing Unit (CPU)
b) Random Access Memory (RAM)
c) Hard Disk Drive (HDD)
d) Graphics Processing Unit (GPU)
Answer: a) Central Processing Unit (CPU)
MCQ.3. What does RAM stand for?
a) Read-Only Memory
b) Random Access Memory
c) Read and Modify
d) Real-time Access Module
Answer: b) Random Access Memory
MCQ.4. Which computer port is typically used to connect a mouse?
a) USB
b) HDMI
c) VGA
d) Ethernet
Answer: a) USB
MCQ.5. What does GUI stand for?
a) General User Interface
b) Graphic User Interface
c) Graphical Understanding Interface
d) General Utility Interface
Answer: b) Graphic User Interface
MCQ.6. Which type of software allows users to perform specific tasks like word processing or spreadsheet calculations?
a) Operating System
b) Application Software
c) System Software
d) Utility Software
Answer: b) Application Software
MCQ.7. The binary system uses which two digits to represent all numbers?
a) 0 and 1
b) 1 and 2
c) 0 and 9
d) 1 and 9
Answer: a) 0 and 1
MCQ.8. What is the smallest unit of data in a computer?
a) Kilobyte
b) Byte
c) Bit
d) Megabyte
Answer: c) Bit
MCQ.9. Which programming language is commonly used for web development?
a) Java
b) Python
c) HTML
d) C++
Answer: c) HTML
MCQ.10. Which component is responsible for storing the operating system, software, and files permanently in a computer?
a) RAM
b) CPU
c) GPU
d) Hard Disk Drive (HDD)
Answer: d) Hard Disk Drive (HDD)
Computer MCQ for competitive exams Set 1
MCQ.11. Which type of software helps prevent unauthorized access to a computer system?
a) Antivirus
b) Firewall
c) Operating System
d) Web Browser
Answer: b) Firewall
MCQ.12. What does CPU stand for?
a) Central Processing Unit
b) Computer Processing Unit
c) Central Power Unit
d) Core Processing Unit
Answer: a) Central Processing Unit
MCQ.13. Which device allows a computer to connect to the internet wirelessly?
a) Modem
b) Router
c) Ethernet Cable
d) USB Drive
Answer: b) Router
MCQ.14. Which type of printer uses powdered ink to create documents?
a) Inkjet Printer
b) Laser Printer
c) Dot Matrix Printer
d) 3D Printer
Answer: b) Laser Printer
MCQ.15. What is the purpose of an operating system in a computer?
a) To store data
b) To display advertisements
c) To manage computer resources
d) To enhance internet speed
Answer: c) To manage computer resources
MCQ.16. Which computer memory is non-volatile and retains data even when the power is turned off?
a) RAM
b) ROM
c) Cache Memory
d) Virtual Memory
Answer: b) ROM
MCQ.17. Which computer component is responsible for converting digital signals into analog signals (and vice versa) for communication purposes?
a) CPU
b) RAM
c) GPU
d) Modem
Answer: d) Modem
MCQ.18. What is the full form of URL in the context of web browsing?
a) Uniform Resource Locator
b) Universal Rendering Link
c) Unified Resolution Locator
d) User Review Link
Answer: a) Uniform Resource Locator
MCQ.19. Which programming language is often used for artificial intelligence and machine learning applications?
a) JavaScript
b) Swift
c) Python
d) C#
Answer: c) Python
MCQ.20. What does the abbreviation USB stand for?
a) Universal Serial Bus
b) United System Bandwidth
c) Ultra-Speed Boost
d) Underlying System Base
Answer: a) Universal Serial Bus
Computer MCQ for competitive exams Set 1
MCQ.21. Which key is used to perform a soft reset (reboot) of a computer?
a) Ctrl
b) Alt
c) Esc
d) Ctrl + Alt + Del
Answer: d) Ctrl + Alt + Del
MCQ.22. Which computer company was founded by Steve Jobs and Steve Wozniak in 1976?
a) IBM
b) Microsoft
c) Apple
d) Dell
Answer: c) Apple
MCQ.23. Which file format is commonly used for images and photographs?
a) PDF
b) DOCX
c) JPEG
d) MP3
Answer: c) JPEG
MCQ.24. What is the purpose of a GPU in a computer?
a) Running the operating system
b) Storing data permanently
c) Displaying graphics and images
d) Connecting to the internet
Answer: c) Displaying graphics and images
MCQ.25. What is the maximum value that can be represented by a 4-bit binary number?
a) 7
b) 8
c) 15
d) 16
Answer: c) 15
MCQ.26. What does the abbreviation HTTP stand for in web addresses?
a) HyperText Transfer Protocol
b) Home Tool Tips Panel
c) Host Transfer Text Protocol
d) Hypertext Transport Ticker
Answer: a) HyperText Transfer Protocol
MCQ.27. Which key is used to capitalize letters when typing?
a) Shift
b) Caps Lock
c) Tab
d) Enter
Answer: a) Shift
MCQ.28. Which type of computer memory is the fastest but also the most expensive?
a) RAM
b) ROM
c) Cache Memory
d) Virtual Memory
Answer: c) Cache Memory
MCQ.29. What is the purpose of a compiler in programming?
a) Translating source code to machine code
b) Debugging programs
c) Creating graphic interfaces
d) Managing hardware resources
Answer: a) Translating source code to machine code
MCQ.30. Which of the following is NOT an example of an operating system?
a) Windows
b) macOS
c) Linux
d) Microsoft Office
Answer: d) Microsoft Office
Computer MCQ for competitive exams Set 1
MCQ.31. Which computer component is responsible for storing the computer’s BIOS (Basic Input/Output System)?
a) CPU
b) RAM
c) GPU
d) ROM
Answer: d) ROM
MCQ.32. What is the function of a motherboard in a computer?
a) To provide power to the computer
b) To store data permanently
c) To control input and output devices
d) To connect and communicate between components
Answer: d) To connect and communicate between components
MCQ.33. What is the full form of HTML in the context of web development?
a) Hyperlink Text Markup Language
b) Hyper Transfer Making Language
c) Hypertext Markup Language
d) High-level Text Management Language
Answer: c) Hypertext Markup Language
MCQ.34. Which computer port is used for connecting external hard drives and other peripheral devices?
a) USB
b) HDMI
c) VGA
d) Ethernet
Answer: a) USB
MCQ.35. What is the purpose of a network router?
a) To connect a computer to the internet
b) To convert digital signals into analog signals
c) To perform arithmetic and logical operations
d) To manage and direct network traffic
Answer: d) To manage and direct network traffic
MCQ.36. Which type of software is designed to detect, prevent, and remove malicious software from a computer?
a) Firewall
b) Antivirus
c) Operating System
d) Web Browser
Answer: b) Antivirus
MCQ.37. What is the smallest unit of information in a computer’s memory?
a) Byte
b) Bit
c) Kilobyte
d) Megabyte
Answer: b) Bit
MCQ.38. Which programming language is commonly used for creating mobile applications?
a) Java
b) Swift
c) C#
d) Python
Answer: b) Swift
MCQ.39. What does SSD stand for in the context of data storage?
a) Solid State Drive
b) Super Speed Disk
c) System Software Directory
d) Secondary Storage Device
Answer: a) Solid State Drive
MCQ.40. What is the function of a graphics card (GPU) in a computer?
a) Running the operating system
b) Storing data permanently
c) Displaying graphics and images
d) Managing network connections
Answer: c) Displaying graphics and images
Computer MCQ for competitive exams Set 1
MCQ.41. Which type of software allows users to browse websites on the internet?
a) Web Browser
b) Word Processor
c) Spreadsheet Software
d) Antivirus
Answer: a) Web Browser
MCQ.42. What does LAN stand for in the context of computer networks?
a) Long Area Network
b) Local Access Node
c) Local Area Network
d) Limited Access Node
Answer: c) Local Area Network
MCQ.43. Which key is used to undo the last action in most software applications?
a) Ctrl
b) Alt
c) Esc
d) Ctrl + Z
Answer: d) Ctrl + Z
MCQ.44. Which type of computer memory is volatile and loses data when the power is turned off?
a) RAM
b) ROM
c) Cache Memory
d) Virtual Memory
Answer: a) RAM
MCQ.45. What is the purpose of an input device in a computer system?
a) To display output to the user
b) To store data permanently
c) To convert digital signals into analog signals
d) To enter data into the computer
Answer: d) To enter data into the computer
MCQ.46. Which company developed the first commercially successful personal computer, the Altair 8800, in 1975?
a) Apple
b) IBM
c) Microsoft
d) Intel
Answer: c) Microsoft
MCQ.47. Which file format is commonly used for audio files and music?
a) PDF
b) DOCX
c) JPEG
d) MP3
Answer: d) MP3
MCQ.48. What is the purpose of the BIOS in a computer?
a) To control the flow of data between hardware components
b) To provide the user interface for the operating system
c) To manage user accounts and permissions
d) To store and execute basic computer instructions during startup
Answer: d) To store and execute basic computer instructions during startup
MCQ.49. Which key is used to move the cursor to the beginning of a new line while typing?
a) Shift
b) Ctrl
c) Enter
d) Tab
Answer: c) Enter
MCQ.50. What does CPU clock speed measure?
a) The number of cores in the CPU
b) The amount of data a CPU can store
c) The speed at which the CPU performs calculations
d) The size of the CPU cache
Answer: c) The speed at which the CPU performs calculations
Computer MCQ for competitive exams Set 1
MCQ.51. What is the main purpose of an operating system?
a) To manage computer hardware
b) To provide power to the computer
c) To display advertisements
d) To store data permanently
Answer: a) To manage computer hardware
MCQ.52. Which programming language is often used for scientific and mathematical applications?
a) JavaScript
b) Python
c) C++
d) Ruby
Answer: b) Python
MCQ.53. Which type of software allows users to create and edit documents, such as letters or reports?
a) Spreadsheet software
b) Word processor
c) Graphics software
d) Presentation software
Answer: b) Word processor
MCQ.54. What is the maximum value that can be represented by an 8-bit binary number?
a) 63
b) 127
c) 255
d) 512
Answer: c) 255
MCQ.55. What is the function of a sound card in a computer?
a) To display graphics and images
b) To store data permanently
c) To convert digital audio signals into analog audio signals (and vice versa)
d) To manage network connections
Answer: c) To convert digital audio signals into analog audio signals (and vice versa)
MCQ.56. Which key is used to copy selected text or files to the clipboard?
a) Ctrl
b) Alt
c) Esc
d) Ctrl + C
Answer: d) Ctrl + C
MCQ.57. Which type of software helps manage the resources and files on a computer?
a) Application software
b) System software
c) Utility software
d) Security software
Answer: b) System software
MCQ.58. What does CPU cache memory store?
a) Operating system files
b) Data and instructions currently in use by the CPU
c) Graphics and multimedia files
d) System BIOS settings
Answer: b) Data and instructions currently in use by the CPU
MCQ.59. What does GUI stand for in the context of computer interfaces?
a) General User Interaction
b) Graphical User Interface
c) Global User Integration
d) Graphics Understanding Interface
Answer: b) Graphical User Interface
MCQ.60. Which computer component is responsible for providing power to all other components?
a) CPU
b) RAM
c) Power Supply Unit (PSU)
d) Motherboard
Answer: c) Power Supply Unit (PSU)
Computer MCQ for competitive exams Set 1
MCQ.61. Which type of software is used to create and manage databases?
a) Word processor
b) Spreadsheet software
c) Database management system
d) Presentation software
Answer: c) Database management system
MCQ.62. What does the abbreviation URL stand for?
a) Uniform Rendering Link
b) Uniform Resource Locator
c) Universal Resolution Link
d) Unified Resource Locator
Answer: b) Uniform Resource Locator
MCQ.63. Which key is used to move the cursor to the end of a line while typing?
a) Shift
b) Ctrl
c) End
d) Tab
Answer: c) End
MCQ.64. What is the primary function of an output device in a computer?
a) To enter data into the computer
b) To display output to the user
c) To convert digital signals into analog signals
d) To store data permanently
Answer: b) To display output to the user
MCQ.65. Which type of memory is directly accessible by the CPU and is faster than RAM?
a) Virtual memory
b) Cache memory
c) ROM
d) Hard disk drive (HDD)
Answer: b) Cache memory
MCQ.66. Which programming language is commonly used for creating web applications and server-side development?
a) Python
b) Java
c) C#
d) PHP
Answer: d) PHP
MCQ.67. What is the function of a mouse in a computer system?
a) To display images and graphics
b) To store data permanently
c) To perform calculations
d) To provide input and control the cursor on the screen
Answer: d) To provide input and control the cursor on the screen
MCQ.68. What does the abbreviation PDF stand for in the context of document formats?
a) Portable Document Format
b) Personal Data File
c) Print Document File
d) Public Domain Format
Answer: a) Portable Document Format
MCQ.69. Which computer component is responsible for storing data temporarily for quick access by the CPU?
a) Hard Disk Drive (HDD)
b) Random Access Memory (RAM)
c) Graphics Processing Unit (GPU)
d) Central Processing Unit (CPU)
Answer: b) Random Access Memory (RAM)
MCQ.70. What is the purpose of a web server in the context of the internet?
a) To store website data
b) To provide email services
c) To manage network connections
d) To deliver web pages to users’ browsers
Answer: d) To deliver web pages to users’ browsers
Computer MCQ for competitive exams Set 1
MCQ.71. Which key is used to delete the character to the right of the cursor while typing?
a) Delete
b) Backspace
c) Ctrl
d) Alt
Answer: a) Delete
MCQ.72. What does the term “bit rate” refer to in the context of digital media?
a) The number of bits in a byte
b) The speed of the CPU
c) The number of bits processed by the GPU
d) The amount of data processed per unit of time
Answer: d) The amount of data processed per unit of time
MCQ.73. Which computer port is used to connect a monitor for displaying visuals?
a) USB
b) HDMI
c) VGA
d) Ethernet
Answer: c) VGA
MCQ.74. What is the purpose of a compiler in programming?
a) To translate source code to machine code
b) To debug programs
c) To create graphic interfaces
d) To manage hardware resources
Answer: a) To translate source code to machine code
MCQ.75. Which type of software is used to create, edit, and format text-based documents?
a) Presentation software
b) Spreadsheet software
c) Word processor
d) Database management system
Answer: c) Word processor
MCQ.76. What does the abbreviation CPU stand for?
a) Central Processing Unit
b) Computer Processing Unit
c) Core Power Unit
d) Central Power Unit
Answer: a) Central Processing Unit
MCQ.77. Which key is used to open the “Task Manager” in Windows operating systems?
a) Ctrl + Shift + Esc
b) Ctrl + Alt + Delete
c) Alt + F4
d) Ctrl + Alt + F1
Answer: a) Ctrl + Shift + Esc
MCQ.78. What is the function of an input device in a computer system?
a) To display output to the user
b) To store data permanently
c) To convert digital signals into analog signals
d) To enter data into the computer
Answer: d) To enter data into the computer
MCQ.79. Which company developed the first graphical web browser, known as Mosaic?
a) Microsoft
b) Apple
c) Netscape
d) IBM
Answer: c) Netscape
MCQ.80. What is the purpose of a network switch in computer networking?
a) To connect a computer to the internet
b) To manage and direct network traffic
c) To convert digital signals into analog signals
d) To display graphics and images
Answer: b) To manage and direct network traffic
Computer MCQ for competitive exams Set 1
MCQ.81. Which file format is commonly used for videos?
a) PNG
b) GIF
c) AVI
d) BMP
Answer: c) AVI
MCQ.82. What is the function of a firewall in a computer system?
a) To detect and remove viruses
b) To manage user accounts and permissions
c) To control the flow of data between networks
d) To provide power to the computer
Answer: c) To control the flow of data between networks
MCQ.83. What does the abbreviation RAM stand for?
a) Read-And-Modify
b) Random Access Memory
c) Read-Only Memory
d) Real-Time Access Module
Answer: b) Random Access Memory
MCQ.84. Which type of software is used to create and manage spreadsheets with calculations and formulas?
a) Word processor
b) Spreadsheet software
c) Database management system
d) Presentation software
Answer: b) Spreadsheet software
MCQ.85. What is the maximum value that can be represented by a 16-bit binary number?
a) 127
b) 255
c) 512
d) 65535
Answer: d) 65535
MCQ.86. Which programming language is commonly used for game development?
a) Python
b) JavaScript
c) C++
d) Java
Answer: c) C++
MCQ.87. What is the purpose of a stylus in the context of computers?
a) To convert digital signals into analog signals
b) To display output to the user
c) To enter data into the computer
d) To provide a precise input for touchscreens and graphics tablets
Answer: d) To provide a precise input for touchscreens and graphics tablets
MCQ.88. Which key is used to paste the content from the clipboard to the current location while typing?
a) Ctrl
b) Alt
c) Esc
d) Ctrl + V
Answer: d) Ctrl + V
MCQ.89. What does the abbreviation CPU clock speed measure?
a) The number of cores in the CPU
b) The amount of data a CPU can store
c) The speed at which the CPU performs calculations
d) The size of the CPU cache
Answer: c) The speed at which the CPU performs calculations
MCQ.90. Which programming language is commonly used for system-level programming and operating systems?
a) Python
b) Java
c) C
d) Ruby
Answer: c) C
Computer MCQ for competitive exams Set 1
MCQ.91. What is the purpose of a barcode reader in a computer system?
a) To convert digital signals into analog signals
b) To display images and graphics
c) To scan and read barcodes for data input
d) To manage network connections
Answer: c) To scan and read barcodes for data input
MCQ.92. Which file format is commonly used for text documents that are easily editable?
a) PDF
b) DOCX
c) JPEG
d) MP3
Answer: b) DOCX
MCQ.93. What does the abbreviation LAN stand for in the context of computer networks?
a) Long Area Network
b) Local Access Node
c) Local Area Network
d) Limited Access Node
Answer: c) Local Area Network
MCQ.94. Which key is used to select all items or text in most software applications?
a) Ctrl
b) Alt
c) Esc
d) Ctrl + A
Answer: d) Ctrl + A
MCQ.95. What is the purpose of an external hard drive in a computer system?
a) To convert digital signals into analog signals
b) To display output to the user
c) To store data permanently
d) To manage network connections
Answer: c) To store data permanently
MCQ.96. Which programming language is commonly used for scripting and automation tasks?
a) C++
b) Python
c) Java
d) Swift
Answer: b) Python
MCQ.97. What does the term “cloud computing” refer to?
a) A type of computer network
b) The process of compressing files
c) Storing and accessing data and programs over the internet
d) A method of cooling computer components
Answer: c) Storing and accessing data and programs over the internet
MCQ.98. Which computer component is responsible for managing wireless network connections?
a) CPU
b) RAM
c) GPU
d) Wireless network card
Answer: d) Wireless network card
MCQ.99. What does the abbreviation GPU stand for in the context of computer hardware?
a) General Processing Unit
b) Graphics Processing Unit
c) General Power Unit
d) Graphical Performance Unit
Answer: b) Graphics Processing Unit
MCQ.100. Which key is used to interrupt or stop a running program or process?
a) Ctrl
b) Alt
c) Esc
d) Ctrl + C
Answer: d) Ctrl + C
Computer MCQ for competitive exams Set 1
MCQ.101. What is the purpose of an optical drive in a computer system?
a) To convert digital signals into analog signals
b) To display images and graphics
c) To store data permanently on optical discs
d) To manage network connections
Answer: c) To store data permanently on optical discs
MCQ.102. Which programming language is often used for web development and server-side scripting?
a) C++
b) Python
c) PHP
d) Swift
Answer: c) PHP
MCQ.103. What does the term “URL” stand for in the context of web addresses?
a) Uniform Rendering Link
b) Universal Resource Locator
c) Unified Resolution Link
d) User Review Link
Answer: b) Universal Resource Locator
MCQ.104. Which key is used to cut selected text or files and move them to the clipboard?
a) Ctrl
b) Alt
c) Esc
d) Ctrl + X
Answer: d) Ctrl + X
MCQ.105. What is the function of an expansion card in a computer system?
a) To store data permanently
b) To convert digital signals into analog signals
c) To provide additional functionality or connectivity to the motherboard
d) To display output to the user
Answer: c) To provide additional functionality or connectivity to the motherboard
MCQ.106. Which type of software is used to create and deliver presentations?
a) Word processor
b) Spreadsheet software
c) Presentation software
d) Database management system
Answer: c) Presentation software
MCQ.107. What does the abbreviation GPU stand for in the context of computer hardware?
a) General Processing Unit
b) Graphics Processing Unit
c) General Power Unit
d) Graphical Performance Unit
Answer: b) Graphics Processing Unit
MCQ.108. Which computer component is responsible for storing data permanently in a computer?
a) CPU
b) RAM
c) Hard Disk Drive (HDD)
d) Motherboard
Answer: c) Hard Disk Drive (HDD)
MCQ.109. What is the maximum value that can be represented by a 32-bit binary number?
a) 2,147,483,647
b) 4,294,967,295
c) 9,223,372,036,854,775,807
d) 18,446,744,073,709,551,615
Answer: b) 4,294,967,295
MCQ.110. Which programming language is commonly used for mobile app development on Android devices?
a) Swift
b) Java
c) C#
d) Ruby
Answer: b) Java
Computer MCQ for competitive exams Set 1
MCQ.111. What is the purpose of a UPS (Uninterruptible Power Supply) in a computer system?
a) To convert digital signals into analog signals
b) To provide additional storage capacity
c) To manage network connections
d) To provide backup power during power outages
Answer: d) To provide backup power during power outages
MCQ.112. What does the abbreviation PDF stand for in the context of document formats?
a) Portable Document Format
b) Personal Data File
c) Print Document File
d) Public Domain Format
Answer: a) Portable Document Format
MCQ.113. Which key is used to open a new tab in most web browsers?
a) Ctrl + T
b) Ctrl + N
c) Ctrl + W
d) Ctrl + P
Answer: a) Ctrl + T
MCQ.114. What is the purpose of a CPU cooler in a computer system?
a) To manage network connections
b) To convert digital signals into analog signals
c) To provide additional storage capacity
d) To prevent the CPU from overheating
Answer: d) To prevent the CPU from overheating
MCQ.115. Which file format is commonly used for vector graphics and illustrations?
a) PNG
b) GIF
c) SVG
d) BMP
Answer: c) SVG
MCQ.116. What is the function of a network interface card (NIC) in a computer system?
a) To manage user accounts and permissions
b) To convert digital signals into analog signals
c) To connect a computer to the internet
d) To provide network connectivity to the computer
Answer: d) To provide network connectivity to the computer
MCQ.117. What does the term “HTML” stand for in the context of web development?
a) Hyperlink Text Markup Language
b) Hyper Transfer Making Language
c) Hypertext Markup Language
d) High-level Text Management Language
Answer: c) Hypertext Markup Language
MCQ.118. Which key is used to refresh the current web page in most web browsers?
a) F5
b) Ctrl + R
c) F12
d) Alt + R
Answer: a) F5
MCQ.119. What is the purpose of a mousepad in a computer system?
a) To convert digital signals into analog signals
b) To provide additional storage capacity
c) To display images and graphics
d) To enhance the performance and accuracy of the mouse
Answer: d) To enhance the performance and accuracy of the mouse
MCQ.120. Which programming language is often used for data analysis and scientific computing?
a) Java
b) C++
c) Python
d) Swift
Answer: c) Python
Computer MCQ for competitive exams Set 1
MCQ.121. What is the function of a power cord in a computer system?
a) To convert digital signals into analog signals
b) To store data permanently
c) To manage network connections
d) To provide electrical power to the computer
Answer: d) To provide electrical power to the computer
MCQ.122. What does the abbreviation LAN stand for in the context of computer networks?
a) Long Area Network
b) Local Access Node
c) Local Area Network
d) Limited Access Node
Answer: c) Local Area Network
MCQ.123. Which key is used to open the “Save As” dialog box in most software applications?
a) Ctrl + S
b) Ctrl + P
c) Ctrl + Shift + S
d) Ctrl + O
Answer: c) Ctrl + Shift + S
MCQ.124. What is the primary function of an output device in a computer?
a) To convert digital signals into analog signals
b) To store data permanently
c) To display output to the user
d) To manage network connections
Answer: c) To display output to the user
MCQ.125. Which type of software is used to create, edit, and format databases?
a) Word processor
b) Spreadsheet software
c) Database management system
d) Presentation software
Answer: c) Database management system
MCQ.126. What does the abbreviation CPU stand for?
a) Central Processing Unit
b) Computer Processing Unit
c) Core Power Unit
d) Central Power Unit
Answer: a) Central Processing Unit
MCQ.127. Which key is used to maximize or restore the active window in most operating systems?
a) F12
b) Alt + F4
c) F11
d) Alt + Tab
Answer: c) F11
MCQ.128. What is the purpose of a computer fan in a computer system?
a) To manage network connections
b) To convert digital signals into analog signals
c) To provide additional storage capacity
d) To cool down computer components and prevent overheating
Answer: d) To cool down computer components and prevent overheating
MCQ.129. Which file format is commonly used for audio files and music?
a) PDF
b) DOCX
c) JPEG
d) MP3
Answer: d) MP3
MCQ.130. What is the function of a network router in computer networking?
a) To manage and direct network traffic
b) To convert digital signals into analog signals
c) To connect a computer to the internet
d) To provide backup power during power outages
Answer: a) To manage and direct network traffic
Computer MCQ for competitive exams Set 1
MCQ.131. Which programming language is commonly used for game development and virtual reality applications?
a) C#
b) Java
c) Python
d) Swift
Answer: a) C#
MCQ.132. What does the term “cloud computing” refer to?
a) A type of computer network
b) The process of compressing files
c) Storing and accessing data and programs over the internet
d) A method of cooling computer components
Answer: c) Storing and accessing data and programs over the internet
MCQ.133. Which computer component is responsible for managing wireless network connections?
a) CPU
b) RAM
c) GPU
d) Wireless network card
Answer: d) Wireless network card
MCQ.134. What is the purpose of a UPS (Uninterruptible Power Supply) in a computer system?
a) To convert digital signals into analog signals
b) To provide additional storage capacity
c) To manage network connections
d) To provide backup power during power outages
Answer: d) To provide backup power during power outages
MCQ.135. What does the abbreviation PDF stand for in the context of document formats?
a) Portable Document Format
b) Personal Data File
c) Print Document File
d) Public Domain Format
Answer: a) Portable Document Format
MCQ.136. Which key is used to open a new tab in most web browsers?
a) Ctrl + T
b) Ctrl + N
c) Ctrl + W
d) Ctrl + P
Answer: a) Ctrl + T
MCQ.137. What is the purpose of a CPU cooler in a computer system?
a) To manage network connections
b) To convert digital signals into analog signals
c) To provide additional storage capacity
d) To prevent the CPU from overheating
Answer: d) To prevent the CPU from overheating
MCQ.138. Which file format is commonly used for vector graphics and illustrations?
a) PNG
b) GIF
c) SVG
d) BMP
Answer: c) SVG
MCQ.139. What is the function of a network interface card (NIC) in a computer system?
a) To manage user accounts and permissions
b) To convert digital signals into analog signals
c) To connect a computer to the internet
d) To provide network connectivity to the computer
Answer: d) To provide network connectivity to the computer
MCQ.140. What does the term “HTML” stand for in the context of web development?
a) Hyperlink Text Markup Language
b) Hyper Transfer Making Language
c) Hypertext Markup Language
d) High-level Text Management Language
Answer: c) Hypertext Markup Language
Computer MCQ for competitive exams Set 1
MCQ.141. Which key is used to refresh the current web page in most web browsers?
a) F5
b) Ctrl + R
c) F12
d) Alt + R
Answer: a) F5
MCQ.142. What is the purpose of a mousepad in a computer system?
a) To convert digital signals into analog signals
b) To provide additional storage capacity
c) To display images and graphics
d) To enhance the performance and accuracy of the mouse
Answer: d) To enhance the performance and accuracy of the mouse
MCQ.143. Which programming language is often used for data analysis and scientific computing?
a) Java
b) C++
c) Python
d) Swift
Answer: c) Python
MCQ.144. What is the function of a power cord in a computer system?
a) To convert digital signals into analog signals
b) To store data permanently
c) To manage network connections
d) To provide electrical power to the computer
Answer: d) To provide electrical power to the computer
MCQ.145. What does the abbreviation LAN stand for in the context of computer networks?
a) Long Area Network
b) Local Access Node
c) Local Area Network
d) Limited Access Node
Answer: c) Local Area Network
MCQ.146. Which key is used to open the “Save As” dialog box in most software applications?
a) Ctrl + S
b) Ctrl + P
c) Ctrl + Shift + S
d) Ctrl + O
Answer: c) Ctrl + Shift + S
MCQ.147. What is the primary function of an output device in a computer?
a) To convert digital signals into analog signals
b) To store data permanently
c) To display output to the user
d) To manage network connections
Answer: c) To display output to the user
MCQ.148. Which type of software is used to create, edit, and format databases?
a) Word processor
b) Spreadsheet software
c) Database management system
d) Presentation software
Answer: c) Database management system
MCQ.149. What does the abbreviation CPU stand for?
a) Central Processing Unit
b) Computer Processing Unit
c) Core Power Unit
d) Central Power Unit
Answer: a) Central Processing Unit
MCQ.150. Which key is used to maximize or restore the active window in most operating systems?
a) F12
b) Alt + F4
c) F11
d) Alt + Tab
Answer: c) F11
Computer MCQ for competitive exams Set 1
MCQ.151. What does the term “BIOS” stand for in the context of computer systems?
a) Basic Input/Output System
b) Basic Internet Operating System
c) Binary Input/Output Service
d) Basic Integrated Operating System
Answer: a) Basic Input/Output System
MCQ.152. Which programming language is commonly used for creating web applications and dynamic websites?
a) Python
b) Java
c) JavaScript
d) C#
Answer: c) JavaScript
MCQ.153. What is the function of a spreadsheet software in a computer system?
a) To manage network connections
b) To store data permanently
c) To provide additional storage capacity
d) To create and manage data in tabular form with formulas and functions
Answer: d) To create and manage data in tabular form with formulas and functions
MCQ.154. What does the term “URL” stand for in the context of web addresses?
a) Uniform Rendering Link
b) Universal Resource Locator
c) Unified Resolution Link
d) User Review Link
Answer: b) Universal Resource Locator
MCQ.155. Which key is used to paste the content from the clipboard to the current location while typing?
a) Ctrl
b) Alt
c) Esc
d) Ctrl + V
Answer: d) Ctrl + V
MCQ.156. What is the purpose of a graphics card (GPU) in a computer system?
a) To manage network connections
b) To convert digital signals into analog signals
c) To display graphics and images on the monitor
d) To provide additional storage capacity
Answer: c) To display graphics and images on the monitor
MCQ.157. Which type of software is used to create, edit, and format presentation slides?
a) Word processor
b) Spreadsheet software
c) Presentation software
d) Database management system
Answer: c) Presentation software
MCQ.158. What is the maximum value that can be represented by a 64-bit binary number?
a) 4,294,967,295
b) 9,223,372,036,854,775,807
c) 18,446,744,073,709,551,615
d) 18,446,744,073,709,551,615
Answer: c) 18,446,744,073,709,551,615
MCQ.159. Which programming language is commonly used for mobile app development on iOS devices?
a) Swift
b) Java
c) C#
d) Python
Answer: a) Swift
MCQ.160. What is the purpose of a CPU cooler in a computer system?
a) To manage network connections
b) To convert digital signals into analog signals
c) To provide additional storage capacity
d) To prevent the CPU from overheating
Answer: d) To prevent the CPU from overheating
Computer MCQ for competitive exams Set 1
MCQ.161. What does the abbreviation PDF stand for in the context of document formats?
a) Portable Document Format
b) Personal Data File
c) Print Document File
d) Public Domain Format
Answer: a) Portable Document Format
MCQ.162. Which key is used to open a new tab in most web browsers?
a) Ctrl + T
b) Ctrl + N
c) Ctrl + W
d) Ctrl + P
Answer: a) Ctrl + T
MCQ.163. What is the purpose of a mousepad in a computer system?
a) To convert digital signals into analog signals
b) To provide additional storage capacity
c) To display images and graphics
d) To enhance the performance and accuracy of the mouse
Answer: d) To enhance the performance and accuracy of the mouse
MCQ.164. Which programming language is often used for data analysis and scientific computing?
a) Java
b) C++
c) Python
d) Swift
Answer: c) Python
MCQ.165. What is the function of a power cord in a computer system?
a) To convert digital signals into analog signals
b) To store data permanently
c) To manage network connections
d) To provide electrical power to the computer
Answer: d) To provide electrical power to the computer
MCQ.166. What does the abbreviation LAN stand for in the context of computer networks?
a) Long Area Network
b) Local Access Node
c) Local Area Network
d) Limited Access Node
Answer: c) Local Area Network
MCQ.167. Which key is used to open the “Save As” dialog box in most software applications?
a) Ctrl + S
b) Ctrl + P
c) Ctrl + Shift + S
d) Ctrl + O
Answer: c) Ctrl + Shift + S
MCQ.168. What is the primary function of an output device in a computer?
a) To convert digital signals into analog signals
b) To store data permanently
c) To display output to the user
d) To manage network connections
Answer: c) To display output to the user
MCQ.169. Which type of software is used to create, edit, and format databases?
a) Word processor
b) Spreadsheet software
c) Database management system
d) Presentation software
Answer: c) Database management system
MCQ.170. What does the abbreviation CPU stand for?
a) Central Processing Unit
b) Computer Processing Unit
c) Core Power Unit
d) Central Power Unit
Answer: a) Central Processing Unit
Computer MCQ for competitive exams Set 1
MCQ.171. Which key is used to maximize or restore the active window in most operating systems?
a) F12
b) Alt + F4
c) F11
d) Alt + Tab
Answer: c) F11
MCQ.172. What is the purpose of a computer fan in a computer system?
a) To manage network connections
b) To convert digital signals into analog signals
c) To provide additional storage capacity
d) To cool down computer components and prevent overheating
Answer: d) To cool down computer components and prevent overheating
MCQ.173. Which file format is commonly used for vector graphics and illustrations?
a) PNG
b) GIF
c) SVG
d) BMP
Answer: c) SVG
MCQ.174. What is the function of a network interface card (NIC) in a computer system?
a) To manage user accounts and permissions
b) To convert digital signals into analog signals
c) To connect a computer to the internet
d) To provide network connectivity to the computer
Answer: d) To provide network connectivity to the computer
MCQ.175. What does the term “HTML” stand for in the context of web development?
a) Hyperlink Text Markup Language
b) Hyper Transfer Making Language
c) Hypertext Markup Language
d) High-level Text Management Language
Answer: c) Hypertext Markup Language
MCQ.176. Which key is used to refresh the current web page in most web browsers?
a) F5
b) Ctrl + R
c) F12
d) Alt + R
Answer: a) F5
MCQ.177. What is the purpose of a mousepad in a computer system?
a) To convert digital signals into analog signals
b) To provide additional storage capacity
c) To display images and graphics
d) To enhance the performance and accuracy of the mouse
Answer: d) To enhance the performance and accuracy of the mouse
MCQ.178. Which programming language is often used for data analysis and scientific computing?
a) Java
b) C++
c) Python
d) Swift
Answer: c) Python
MCQ.179. What is the function of a power cord in a computer system?
a) To convert digital signals into analog signals
b) To store data permanently
c) To manage network connections
d) To provide electrical power to the computer
Answer: d) To provide electrical power to the computer
MCQ.180. What does the abbreviation LAN stand for in the context of computer networks?
a) Long Area Network
b) Local Access Node
c) Local Area Network
d) Limited Access Node
Answer: c) Local Area Network
Computer MCQ for competitive exams Set 1
MCQ.181. Which key is used to open the “Save As” dialog box in most software applications?
a) Ctrl + S
b) Ctrl + P
c) Ctrl + Shift + S
d) Ctrl + O
MCQ.182. What is the primary function of an output device in a computer?
a) To convert digital signals into analog signals
b) To store data permanently
c) To display output to the user
d) To manage network connections
Answer: c) To display output to the user
MCQ.183. Which type of software is used to create, edit, and format databases?
a) Word processor
b) Spreadsheet software
c) Database management system
d) Presentation software
Answer: c) Database management system
MCQ.184. What does the abbreviation CPU stand for?
a) Central Processing Unit
b) Computer Processing Unit
c) Core Power Unit
d) Central Power Unit
Answer: a) Central Processing Unit
MCQ.185. Which key is used to maximize or restore the active window in most operating systems?
a) F12
b) Alt + F4
c) F11
d) Alt + Tab
Answer: c) F11
MCQ.186. What is the purpose of a computer fan in a computer system?
a) To manage network connections
b) To convert digital signals into analog signals
c) To provide additional storage capacity
d) To cool down computer components and prevent overheating
Answer: d) To cool down computer components and prevent overheating
MCQ.187. Which file format is commonly used for vector graphics and illustrations?
a) PNG
b) GIF
c) SVG
d) BMP
Answer: c) SVG
MCQ.188. What is the function of a network interface card (NIC) in a computer system?
a) To manage user accounts and permissions
b) To convert digital signals into analog signals
c) To connect a computer to the internet
d) To provide network connectivity to the computer
Answer: d) To provide network connectivity to the computer
MCQ.189. What does the term “HTML” stand for in the context of web development?
a) Hyperlink Text Markup Language
b) Hyper Transfer Making Language
c) Hypertext Markup Language
d) High-level Text Management Language
Answer: c) Hypertext Markup Language
MCQ.190. Which key is used to refresh the current web page in most web browsers?
a) F5
b) Ctrl + R
c) F12
d) Alt + R
Answer: a) F5
Computer MCQ for competitive exams Set 1
MCQ.191. What is the purpose of a mousepad in a computer system?
a) To convert digital signals into analog signals
b) To provide additional storage capacity
c) To display images and graphics
d) To enhance the performance and accuracy of the mouse
Answer: d) To enhance the performance and accuracy of the mouse
MCQ.192. Which programming language is often used for data analysis and scientific computing?
a) Java
b) C++
c) Python
d) Swift
Answer: c) Python
MCQ.193. What is the function of a power cord in a computer system?
a) To convert digital signals into analog signals
b) To store data permanently
c) To manage network connections
d) To provide electrical power to the computer
Answer: d) To provide electrical power to the computer
MCQ.194. What does the abbreviation LAN stand for in the context of computer networks?
a) Long Area Network
b) Local Access Node
c) Local Area Network
d) Limited Access Node
Answer: c) Local Area Network
MCQ.195. Which key is used to open the “Save As” dialog box in most software applications?
a) Ctrl + S
b) Ctrl + P
c) Ctrl + Shift + S
d) Ctrl + O
Answer: c) Ctrl + Shift + S
MCQ.196. What is the primary function of an output device in a computer?
a) To convert digital signals into analog signals
b) To store data permanently
c) To display output to the user
d) To manage network connections
Answer: c) To display output to the user
MCQ.197. Which type of software is used to create, edit, and format databases?
a) Word processor
b) Spreadsheet software
c) Database management system
d) Presentation software
Answer: c) Database management system
MCQ.198. What does the abbreviation CPU stand for?
a) Central Processing Unit
b) Computer Processing Unit
c) Core Power Unit
d) Central Power Unit
Answer: a) Central Processing Unit
MCQ.199. Which key is used to maximize or restore the active window in most operating systems?
a) F12
b) Alt + F4
c) F11
d) Alt + Tab
Answer: c) F11
MCQ.200. What is the purpose of a computer fan in a computer system?
a) To manage network connections
b) To convert digital signals into analog signals
c) To provide additional storage capacity
d) To cool down computer components and prevent overheating
Answer: d) To cool down computer components and prevent overheating
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