✅ 100 Multiple Choice Questions (MCQs) with answers
🧠 100 Computer MCQs with Answers (One-Line Format)
1. The brain of the computer is called — CPU
2. CPU stands for — Central Processing Unit
3. The full form of RAM is — Random Access Memory
4. The full form of ROM is — Read Only Memory
5. The physical parts of a computer are called — Hardware
6. Software is — A set of programs
7. The first mechanical computer was invented by — Charles Babbage
8. Microsoft was founded by — Bill Gates and Paul Allen
9. The main page of a website is called — Homepage
10. The smallest unit of data in a computer is — Bit
11. 1 Byte = — 8 Bits
12. ALU stands for — Arithmetic Logic Unit
13. GUI stands for — Graphical User Interface
14. Operating System is a type of — System Software
15. Example of Application Software — MS Word
16. The full form of HTTP is — Hypertext Transfer Protocol
17. The full form of URL is — Uniform Resource Locator
18. LAN stands for — Local Area Network
19. WAN stands for — Wide Area Network
20. The device used to input text — Keyboard
21. The device used to print documents — Printer
22. The device used to see output — Monitor
23. MS Word is used for — Word Processing
24. MS Excel is used for — Creating Spreadsheets
25. MS PowerPoint is used for — Making Presentations
26. The key used to delete characters — Delete key
27. Shortcut for Copy — Ctrl + C
28. Shortcut for Paste — Ctrl + V
29. Shortcut for Cut — Ctrl + X
30. Shortcut for Undo — Ctrl + Z
31. Shortcut for Redo — Ctrl + Y
32. Shortcut for Save — Ctrl + S
33. Shortcut for Print — Ctrl + P
34. Shortcut for Find — Ctrl + F
35. The temporary memory of the computer is — RAM
36. Permanent memory is — ROM
37. The full form of BIOS — Basic Input Output System
38. The full form of PDF — Portable Document Format
39. The full form of IP — Internet Protocol
40. The full form of ISP — Internet Service Provider
41. Google Chrome is a — Web Browser
42. The inventor of the mouse — Douglas Engelbart
43. A virus is a — Malicious Software
44. Firewall protects from — Unauthorized Access
45. The full form of WWW — World Wide Web
46. The full form of HTML — Hypertext Markup Language
47. The full form of CSS — Cascading Style Sheets
48. The full form of SQL — Structured Query Language
49. The full form of URL — Uniform Resource Locator
50. The main memory is also known as — Primary Memory
51. The output devices include — Monitor, Printer, Speakers
52. The full form of HDD — Hard Disk Drive
53. SSD stands for — Solid State Drive
54. The full form of USB — Universal Serial Bus
55. The full form of VGA — Video Graphics Array
56. The full form of LCD — Liquid Crystal Display
57. The full form of LED — Light Emitting Diode
58. The full form of CAD — Computer Aided Design
59. The full form of CAM — Computer Aided Manufacturing
60. Binary system uses — 0 and 1
61. 1 Kilobyte = — 1024 Bytes
62. The father of the Internet — Vint Cerf
63. The full form of ICT — Information and Communication Technology
64. The full form of DNS — Domain Name System
65. The full form of IP Address — Internet Protocol Address
66. The full form of SMTP — Simple Mail Transfer Protocol
67. The full form of POP3 — Post Office Protocol 3
68. The full form of FTP — File Transfer Protocol
69. The full form of CPU — Central Processing Unit
70. The full form of UPS — Uninterruptible Power Supply
71. The first generation of computers used — Vacuum Tubes
72. The second generation used — Transistors
73. The third generation used — Integrated Circuits
74. The fourth generation used — Microprocessors
75. The fifth generation uses — Artificial Intelligence
76. The full form of AI — Artificial Intelligence
77. The full form of IoT — Internet of Things
78. The full form of AR — Augmented Reality
79. The full form of VR — Virtual Reality
80. The full form of OCR — Optical Character Recognition
81. The full form of MICR — Magnetic Ink Character Recognition
82. The full form of ATM — Automated Teller Machine
83. The full form of POS — Point of Sale
84. The full form of GPS — Global Positioning System
85. The full form of GIGO — Garbage In Garbage Out
86. A byte represents — One character
87. The full form of DNS — Domain Name System
88. The first electronic computer was — ENIAC
89. The main function of a CPU — Processing Data
90. Data is stored permanently in — Hard Disk
91. The full form of GUI — Graphical User Interface
92. The inventor of WWW — Tim Berners-Lee
93. The extension of Word file — .docx
94. The extension of Excel file — .xlsx
95. The extension of PowerPoint file — .pptx
96. The extension of text file — .txt
97. The extension of image file — .jpg
98. The extension of compressed file — .zip
99. The full form of IP — Internet Protocol
100. The latest version of Windows (as of 2025) — Windows 11
