Here are 100 computer general knowledge questions with answers that cover fundamental concepts, history, software, hardware, and applications in the field of computers:
Best 100 computer gk questions in english with answers
A machine that performs calculations and processes data.
2. Who is known as the father of computers?
Charles Babbage.
3. What does CPU stand for?
Central Processing Unit.
4.. What is the function of RAM in a computer?
It temporarily stores data for quick access.
5. What is the full form of ROM?
Read-Only Memory.
6. When was the first computer invented?
In the 1940s.
7. Who developed the first algorithm for a machine?
Ada Lovelace.
8. What technology was used in the first generation of computers?
Vacuum tubes.
9. What is ENIAC?
The first general-purpose electronic computer.
10. When was the first personal computer released?
In the 1970s.
11. What is the main circuit board in a computer called?
Motherboard.
12. What does GPU stand for?
Graphics Processing Unit.
13. What is an input device?
A device that sends data to a computer, like a keyboard or mouse.
14. What does HDD stand for?
Hard Disk Drive.
15. What is an SSD?
Solid State Drive, a type of fast storage device.
16. What is an operating system?
Software that manages computer hardware and software.
17. Name a popular open-source operating system.
Linux.
18. What does GUI stand for?
Graphical User Interface.
19. What is the function of an OS?
To manage computer resources and enable user interaction.
20. Which OS is known for its stability in servers?
Linux.
21. What is the World Wide Web?
A collection of web pages on the internet.
22. Who invented the World Wide Web?
Tim Berners-Lee.
23. What does HTTP stand for?
Hypertext Transfer Protocol.
24. What is a web browser?
A program used to access the internet, like Chrome or Firefox.
25. What does URL stand for?
Uniform Resource Locator.
26. What is a computer network?
A group of interconnected computers that share resources.
27. What does LAN stand for?
Local Area Network.
28. What is the function of a router?
To direct data between different networks.
29. What does WAN stand for?
Wide Area Network.
30. What is an IP address?
A unique identifier for a device on a network.
31. What is a programming language?
A language used to give instructions to a computer.
32. Name a popular language for web development.
JavaScript.
33. What does HTML stand for?
Hypertext Markup Language.
34. What is Python commonly used for?
Data science, web development, and automation.
35. What is C++?
A programming language used for system software and games.
36. What is a database?
A collection of organized data.
37. What does SQL stand for?
Structured Query Language.
38. What is a primary key?
A unique identifier for records in a database table.
39. What does DBMS stand for?
Database Management System.
40. Name a popular DBMS.
MySQL.
41. What is cybersecurity?
The practice of protecting systems from digital attacks.
42. What does a firewall do?
It prevents unauthorized access to or from a network.
43. What is phishing?
A fraudulent attempt to obtain sensitive information.
44. What does VPN stand for?
Virtual Private Network.
45. What is malware?
Malicious software intended to harm a system.
46. What is artificial intelligence (AI)?
Technology that simulates human intelligence in machines.
47. What is machine learning?
A subset of AI that enables machines to learn from data.
48. Name an application of AI.
Voice assistants like Siri or Alexa.
49. What is deep learning?
A type of machine learning with neural networks.
50. What is computer vision?
AI technology that enables computers to interpret visual data.
Delivery of computing services over the internet.
52. What does IoT stand for?
Internet of Things.
53. What is blockchain?
A decentralized digital ledger of transactions.
54. Name a popular blockchain.
Bitcoin.
55. What is 5G?
The fifth generation of mobile network technology.
56. What is software?
A set of instructions that tell a computer how to work.
57. What is application software?
Programs designed for end-users, like word processors.
58. What is system software?
Software that manages hardware, like an OS.
59. What is firmware?
Permanent software programmed into hardware.
60. What is open-source software?
Software with code available for anyone to modify.
61. What does RAM stand for?
Random Access Memory.
62. What is cache memory?
A small, fast type of volatile computer memory.
63. What is a hard disk?
A data storage device inside a computer.
64. What does ROM store?
Firmware or boot instructions for a computer.
65. What is virtual memory?
Memory used by the OS to extend RAM capacity.
66. What technology was used in the second generation of computers?
Transistors.
67 What marked the third generation of computers?
Integrated circuits.
68. What generation introduced microprocessors?
63. What is a hard disk?
A data storage device inside a computer.
64. What does ROM store?
Firmware or boot instructions for a computer.
65. What is virtual memory?
Memory used by the OS to extend RAM capacity.
66. What technology was used in the second generation of computers?
Transistors.
67 What marked the third generation of computers?
Integrated circuits.
68. What generation introduced microprocessors?
Fourth generation.
69. Which generation introduced AI and ML?
Fifth generation.
70. What is a mainframe computer?
A large, powerful computer used by institutions.
71. What does USB stand for?
Universal Serial Bus.
72. What does BIOS stand for?
Basic Input Output System.
73. What does HTTP stand for?
Hypertext Transfer Protocol.
74. What does SMTP stand for?
Simple Mail Transfer Protocol.
75. What does DNS stand for?
Domain Name System.
76. What is computer graphics?
The creation of images using computers.
77. What does CAD stand for?
Computer-Aided Design.
78. What is rendering?
The process of generating an image from a model.
79. What is a pixel?
The smallest unit of a digital image.
80. What is a bitmap image?
An image made up of individual pixels.
81. What is a computer virus?
Malicious code that replicates and spreads.
82. What is ransomware?
Malware that holds data hostage for payment.
83. What does Trojan mean in computing?
Malicious software disguised as legitimate.
84. What is a worm?
Malware that spreads over networks without user action.
85. What is antivirus software?
Software that detects and removes malware.
86. What is coding?
Writing instructions for computers.
87. What is debugging?
Identifying and fixing errors in code.
88. What is an IDE?
Integrated Development Environment, a tool for coding.
89. What is source code?
The original code of a program.
90. What is open-source code?
Code that is freely available for modification.
91. What is data science?
Field of extracting insights from data.
92. What is big data?
Large, complex data sets beyond traditional processing.
93. What is data mining?
Extracting patterns from large datasets.
94. What does SQL do in data science?
Manages and queries data in databases.
95. What is machine learning’s role in data science?
To create models that make predictions based on data.
96. What is a GUI?
Graphical User Interface.