Computers have become an integral part of our daily lives, from personal use to professional applications. Understanding the basics of computers and their functionalities is crucial in today’s digital era. This article presents 100 computer general knowledge questions, perfect for learners, quiz enthusiasts, and anyone looking to enhance their tech knowledge.
Computer General Knowledge Quiz
1. What does CPU stand for in a computer?
a) Central Process Unit
b) Central Processing Unit
c) Central Programming Unit
d) Central Peripheral Unit
Answer: Central Processing Unit
2. Which part of the computer is known as the “brain”?
a) Monitor
b) CPU
c) Keyboard
d) Mouse
Answer: CPU
3. What is the full form of RAM?
a) Random Access Memory
b) Read Access Memory
c) Rapid Access Memory
d) Regular Access Memory
Answer: Random Access Memory
4. Which type of device is a keyboard?
a) Input Device
b) Output Device
c) Storage Device
d) Processing Device
Answer: Input Device
5. What does URL stand for?
a) Uniform Resource Locator
b) Universal Resource Locator
c) Unique Resource Link
d) Uniform Retrieval Link
Answer: Uniform Resource Locator
6. Which of the following is an operating system?
a) Microsoft Word
b) Windows
c) Google Chrome
d) Photoshop
Answer: Windows
7. Which device is used to display the output from a computer?
a) Keyboard
b) Printer
c) Monitor
d) Mouse
Answer: Monitor
8. Which component is responsible for executing instructions in a computer?
a) CPU
b) RAM
c) Hard Drive
d) Graphics Card
Answer: CPU
9. What is the full form of HTTP?
a) HyperText Transfer Protocol
b) HyperText Transmission Protocol
c) HighText Transfer Protocol
d) HyperText Transport Protocol
Answer: HyperText Transfer Protocol
10. Which storage device is used for permanent data storage?
a) RAM
b) Hard Drive
c) Cache Memory
d) Registers
Answer: Hard Drive
11. What is the full form of LAN?
a) Local Access Network
b) Local Area Network
c) Limited Area Network
d) Limited Access Network
Answer: Local Area Network
12. Which of the following is an example of application software?
a) Operating System
b) MS Word
c) CPU
d) RAM
Answer: MS Word
13. Which programming language is known as the “mother of all languages”?
a) Python
b) Assembly Language
c) C
d) Java
Answer: C
14. Which device is used to connect a computer to a network?
a) Router
b) Mouse
c) Printer
d) Keyboard
Answer: Router
15. What is the function of a compiler?
a) Converts high-level language to machine language
b) Converts machine language to high-level language
c) Executes instructions directly
d) Transfers data between devices
Answer: Converts high-level language to machine language
16. Which of the following is not a search engine?
a) Google
b) Yahoo
c) Bing
d) Windows
Answer: Windows
17. Which key combination is used to copy text in Windows?
a) Ctrl + C
b) Ctrl + V
c) Ctrl + X
d) Ctrl + Z
Answer: Ctrl + C
18. What does Wi-Fi stand for?
a) Wireless Fidelity
b) Wide Fidelity
c) Wireless Frequency
d) Wide Frequency
Answer: Wireless Fidelity
19. Which device is used to store backup data?
a) Hard Drive
b) Pen Drive
c) External Hard Disk
d) All of the above
Answer: All of the above
20. Which company developed the Windows operating system?
a) Apple
b) Microsoft
c) IBM
d) Google
Answer: Microsoft
21. What is the smallest unit of data in a computer?
a) Bit
b) Byte
c) Kilobyte
d) Megabyte
Answer: Bit
22. What is the full form of IP in IP address?
a) Internet Protocol
b) Internal Process
c) Internet Process
d) Internal Protocol
Answer: Internet Protocol
23. Which component is used to cool down a computer?
a) CPU Fan
b) RAM
c) Monitor
d) Hard Drive
Answer: CPU Fan
24. What is the full form of PDF?
a) Portable Document Format
b) Portable Data File
c) Printable Document File
d) Printable Data Format
Answer: Portable Document Format
25. Which of the following is a web browser?
a) Chrome
b) MS Word
c) Excel
d) Photoshop
Answer: Chrome
26. Which of the following is an input device?
a) Mouse
b) Monitor
c) Printer
d) Speaker
Answer: Mouse
27. What is the full form of BIOS?
a) Basic Input Output System
b) Binary Input Output System
c) Basic Internal Operating System
d) Binary Internal Operating System
Answer: Basic Input Output System
28. Which memory is used to store frequently accessed data for quick retrieval?
a) Cache Memory
b) RAM
c) ROM
d) Hard Drive
Answer: Cache Memory
29. Which software is used to browse the internet?
a) Google Chrome
b) MS Word
c) PowerPoint
d) Excel
Answer: Google Chrome
30. Which type of malware is designed to replicate itself and spread?
a) Virus
b) Trojan Horse
c) Spyware
d) Adware
Answer: Virus
31. What is the shortcut key to paste copied text in Windows?
a) Ctrl + V
b) Ctrl + C
c) Ctrl + X
d) Ctrl + Z
Answer: Ctrl + V
32. What does GHz in a processor specification represent?
a) Processing Speed
b) Memory Capacity
c) Graphics Quality
d) Data Transfer Speed
Answer: Processing Speed
33. Which device is used to connect computers in a Local Area Network (LAN)?
a) Switch
b) Modem
c) Router
d) USB
Answer: Switch
34. What is the full form of USB?
a) Universal Serial Bus
b) Universal System Bus
c) Universal Storage Bus
d) Universal Source Bus
Answer: Universal Serial Bus
35. Which of the following is an example of cloud storage?
a) Google Drive
b) Dropbox
c) OneDrive
d) All of the above
Answer: All of the above
36. What is the full form of FTP?
a) File Transfer Protocol
b) File Transmission Process
c) Fast Transfer Protocol
d) File Transfer Process
Answer: File Transfer Protocol
37. Which of the following is a non-volatile memory?
a) ROM
b) RAM
c) Cache Memory
d) Registers
Answer: ROM
38. Which programming language is commonly used for web development?
a) HTML
b) Python
c) JavaScript
d) All of the above
Answer: All of the above
39. Which key is used to refresh a webpage in a browser?
a) F5
b) F4
c) F6
d) F3
Answer: F5
40. What does SSD stand for?
a) Solid State Drive
b) Static Storage Device
c) Solid System Drive
d) Static System Device
Answer: Solid State Drive
41. Which of the following is an antivirus software?
a) Norton
b) McAfee
c) Kaspersky
d) All of the above
Answer: All of the above
42. Which port is used to connect a monitor to a computer?
a) VGA
b) HDMI
c) DVI
d) All of the above
Answer: All of the above
43. Which type of storage is used in pen drives?
a) Flash Memory
b) ROM
c) Hard Drive
d) RAM
Answer: Flash Memory
44. What is the full form of AI?
a) Artificial Intelligence
b) Automated Intelligence
c) Advanced Intelligence
d) Augmented Intelligence
Answer: Artificial Intelligence
45. Which of the following is a search engine?
a) Google
b) Bing
c) Yahoo
d) All of the above
Answer: All of the above
46. Which type of cable is commonly used for internet connections?
a) Ethernet Cable
b) VGA Cable
c) HDMI Cable
d) Optical Cable
Answer: Ethernet Cable
47. Which company developed the Android operating system?
a) Microsoft
b) Google
c) Apple
d) IBM
Answer: Google
48. What is the default file extension for MS Word documents?
a) .docx
b) .pdf
c) .xls
d) .ppt
Answer: .docx
49. What does GUI stand for?
a) Graphical User Interface
b) General User Interface
c) Graphics Utility Interface
d) General Utility Interface
Answer: Graphical User Interface
50. Which key is used to take a screenshot on Windows?
a) Print Screen (PrtSc)
b) Shift + S
c) Ctrl + Print Screen
d) Alt + PrtSc
Answer: Print Screen (PrtSc)
51. What is the full form of DNS?
a) Domain Name System
b) Data Network System
c) Domain Number System
d) Digital Name System
Answer: Domain Name System
52. Which company developed the macOS operating system?
a) Google
b) Microsoft
c) Apple
d) IBM
Answer: Apple
53. What is the function of a firewall in a computer network?
a) Protects from unauthorized access
b) Increases processing speed
c) Enhances graphics
d) Compresses data
Answer: Protects from unauthorized access
54. What is the default file extension for PowerPoint presentations?
a) .pptx
b) .xls
c) .docx
d) .pdf
Answer: .pptx
55. Which type of memory is temporary and volatile?
a) RAM
b) ROM
c) Hard Drive
d) SSD
Answer: RAM
56. Which programming language is used for Android app development?
a) Java
b) Kotlin
c) Python
d) Both a and b
Answer: Both a and b
57. Which of the following is an example of a web server?
a) Apache
b) IIS
c) Nginx
d) All of the above
Answer: All of the above
58. Which key combination is used to undo an action in Windows?
a) Ctrl + Z
b) Ctrl + Y
c) Ctrl + X
d) Ctrl + U
Answer: Ctrl + Z
59. What is the main purpose of a database?
a) Store and manage data
b) Edit images
c) Write code
d) Browse the internet
Answer: Store and manage data
60. What does SSD stand for in storage devices?
a) Solid State Drive
b) Systematic Storage Device
c) Solid Storage Disk
d) Standard Storage Device
Answer: Solid State Drive
61. Which file extension is used for Excel spreadsheets?
a) .xls or .xlsx
b) .docx
c) .pptx
d) .pdf
Answer: .xls or .xlsx
62. Which protocol is used for secure communication over the internet?
a) HTTPS
b) HTTP
c) FTP
d) SMTP
Answer: HTTPS
63. What is the main function of an operating system?
a) Manage hardware and software resources
b) Connect to the internet
c) Store data permanently
d) Perform arithmetic calculations
Answer: Manage hardware and software resources
64. What is the full form of SQL?
a) Structured Query Language
b) Simple Query Language
c) Sequential Query Language
d) Standard Query Language
Answer: Structured Query Language
65. Which port is used for email communication?
a) Port 25 (SMTP)
b) Port 80 (HTTP)
c) Port 21 (FTP)
d) Port 443 (HTTPS)
Answer: Port 25 (SMTP)
66. Which device is used to connect to a wireless network?
a) Router
b) Switch
c) Ethernet Cable
d) Modem
Answer: Router
67. What is the primary function of an antivirus software?
a) Detect and remove malware
b) Increase system speed
c) Improve graphics performance
d) Backup data
Answer: Detect and remove malware
68. Which of the following is a coding language for web design?
a) HTML
b) CSS
c) JavaScript
d) All of the above
Answer: All of the above
69. Which computer component is responsible for graphical output?
a) Graphics Card
b) CPU
c) RAM
d) Hard Drive
Answer: Graphics Card
70. Which key is used to delete selected items permanently?
a) Shift + Delete
b) Ctrl + Delete
c) Alt + Delete
d) Ctrl + X
Answer: Shift + Delete
71. What does IoT stand for?
a) Internet of Things
b) Information of Technology
c) Internet of Technology
d) Integration of Things
Answer: Internet of Things
72. Which of the following is an example of an e-commerce website?
a) Amazon
b) Flipkart
c) eBay
d) All of the above
Answer: All of the above
73. Which of the following is a shortcut to lock your computer in Windows?
a) Windows + L
b) Ctrl + L
c) Shift + L
d) Alt + L
Answer: Windows + L
74. Which component is used to store the BIOS settings in a computer?
a) CMOS Battery
b) RAM
c) Hard Drive
d) Graphics Card
Answer: CMOS Battery
75. Which company is known for developing the Linux operating system?
a) Linus Torvalds
b) Microsoft
c) Google
d) IBM
Answer: Linus Torvalds
76. Which software is used to create and edit images?
a) Adobe Photoshop
b) MS Word
c) Excel
d) Google Chrome
Answer: Adobe Photoshop
77. What does VPN stand for?
a) Virtual Private Network
b) Virtual Public Network
c) Verified Private Network
d) Virtual Protected Network
Answer: Virtual Private Network
78. Which type of storage is faster but more expensive than traditional hard drives?
a) SSD (Solid State Drive)
b) HDD (Hard Disk Drive)
c) DVD
d) Floppy Disk
Answer: SSD (Solid State Drive)
79. Which command is used to restart a computer?
a) Reboot
b) Shutdown
c) Sleep
d) Hibernate
Answer: Reboot
80. Which programming language is most commonly used for AI and machine learning?
a) Python
b) Java
c) C++
d) Ruby
Answer: Python
81. What is the function of a modem in a computer network?
a) Converts digital signals to analog and vice versa
b) Stores backup data
c) Enhances system performance
d) Compresses files
Answer: Converts digital signals to analog and vice versa
82. Which of the following is a binary number?
a) 10101
b) 5678
c) 8932
d) 2345
Answer: 10101
83. What does HTTP stand for in a website URL?
a) Hypertext Transfer Protocol
b) Hypertext Transmission Process
c) High Transfer Process
d) Hypertext Template Process
Answer: Hypertext Transfer Protocol
84. Which of the following is an open-source operating system?
a) Linux
b) Windows
c) macOS
d) DOS
Answer: Linux
85. Which programming language is used for frontend development?
a) HTML
b) CSS
c) JavaScript
d) All of the above
Answer: All of the above
86. Which key combination is used to open Task Manager in Windows?
a) Ctrl + Shift + Esc
b) Alt + Tab
c) Ctrl + Alt + Delete
d) Both a and c
Answer: Both a and c
87. Which of the following is an example of an email service?
a) Gmail
b) Yahoo Mail
c) Outlook
d) All of the above
Answer: All of the above
88. Which device is used to produce a hard copy of digital data?
a) Printer
b) Monitor
c) Scanner
d) Plotter
Answer: Printer
89. What does HDMI stand for?
a) High Definition Multimedia Interface
b) High Digital Multimedia Integration
c) High Dynamic Media Interface
d) High Definition Media Integration
Answer: High Definition Multimedia Interface
90. Which company developed the Java programming language?
a) Sun Microsystems
b) Microsoft
c) Google
d) Apple
Answer: Sun Microsystems
91. What is the main function of a proxy server?
a) Acts as an intermediary for requests between clients and servers
b) Stores data permanently
c) Increases download speed
d) Compresses files
Answer: Acts as an intermediary for requests between clients and servers
92. Which file format is commonly used for audio files?
a) MP3
b) JPEG
c) PDF
d) TXT
Answer: MP3
93. Which shortcut key is used to find a word in a document?
a) Ctrl + F
b) Ctrl + H
c) Ctrl + G
d) Ctrl + T
Answer: Ctrl + F
94. What is the default file extension for a text file?
a) .txt
b) .doc
c) .xls
d) .pdf
Answer: .txt
95. What does GPU stand for?
a) Graphics Processing Unit
b) General Processing Unit
c) Global Processing Unit
d) Graphics Programming Unit
Answer: Graphics Processing Unit
96. Which software is used to view and manage PDF files?
a) Adobe Acrobat Reader
b) MS Excel
c) PowerPoint
d) Notepad
Answer: Adobe Acrobat Reader
97. Which port is commonly used for HTTP communication?
a) Port 80
b) Port 21
c) Port 25
d) Port 443
Answer: Port 80
98. Which of the following is not an operating system?
a) Linux
b) Windows
c) Java
d) macOS
Answer: Java
99. Which device is used to capture video input?
a) Webcam
b) Scanner
c) Microphone
d) Mouse
Answer: Webcam
100. What is the binary equivalent of the decimal number 10?
a) 1010
b) 1001
c) 1110
d) 1000
Answer: 1010
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