1. What does CPU stand for?
A) Central Programming Unit
B) Central Processing Unit ✅
C) Central Performance Unit
D) Central Power Unit
📘 The CPU processes all instructions from software and hardware.
2. Which device is used to input data into a computer?
A) Monitor
B) Printer
C) Keyboard ✅
D) Speaker
📘 The keyboard is a primary input device.
3. What is the brain of the computer?
A) RAM
B) CPU ✅
C) ROM
D) Mouse
📘 The CPU carries out instructions of computer programs.
4. Which of the following is not an input device?
A) Scanner
B) Keyboard
C) Printer ✅
D) Mouse
📘 Printer is an output device that produces a hard copy.
5. The full form of RAM is:
A) Read Access Memory
B) Random Access Memory ✅
C) Run Access Memory
D) Readily Available Memory
📘 RAM temporarily stores data the computer is currently using.
6. Which of the following is a permanent memory?
A) RAM
B) ROM ✅
C) Cache
D) Register
📘 ROM is read-only and retains data even when power is off.
7. Which key is used to delete characters to the right of the cursor?
A) Backspace
B) Shift
C) Delete ✅
D) Enter
📘 The Delete key removes characters ahead of the cursor.
8. Which of these is an example of application software?
A) Windows
B) MS Word ✅
C) Linux
D) DOS
📘 MS Word is designed for word processing tasks.
9. Which of the following is an operating system?
A) Oracle
B) MS Excel
C) Windows 10 ✅
D) Photoshop
📘 An operating system manages hardware and software resources.
10. Which part of a computer is used for storing data?
A) Monitor
B) Hard Drive ✅
C) Keyboard
D) Printer
📘 Hard drives store data permanently.
11. What is the full form of URL?
A) Uniform Resource Locator ✅
B) Unique Resource Link
C) Uniform Reference Link
D) Universal Resource Location
📘 URL is the address used to access websites.
12. Which one is a web browser?
A) Google Chrome ✅
B) Windows
C) Linux
D) MS Word
📘 Browsers are used to access and navigate the internet.
13. Which key combination is used to copy text?
A) Ctrl + X
B) Ctrl + C ✅
C) Ctrl + V
D) Ctrl + Z
📘 Ctrl + C is the shortcut for copying selected content.
14. Which one is an example of an output device?
A) Joystick
B) Monitor ✅
C) Keyboard
D) Scanner
📘 Monitors display visual output from the computer.
15. What is the function of the ALU in a CPU?
A) Memory Storage
B) Logical and Arithmetic Calculations ✅
C) Internet Connectivity
D) Input Control
📘 ALU performs all arithmetic and logical operations.
16. What is the unit of measurement for computer memory?
A) Hertz
B) Bit ✅
C) Volt
D) Pixel
📘 Memory is measured in bits and bytes.
17. Which shortcut is used to paste the copied item?
A) Ctrl + X
B) Ctrl + V ✅
C) Ctrl + P
D) Ctrl + C
📘 Ctrl + V pastes content from the clipboard.
18. Which file extension is used for Word documents?
A) .xls
B) .txt
C) .docx ✅
D) .exe
📘 .docx is the standard format for MS Word files.
19. What does HTTP stand for?
A) High Transfer Text Protocol
B) HyperText Transfer Protocol ✅
C) HyperText Transmission Protocol
D) Host Transfer Text Protocol
📘 HTTP is the protocol used for transferring web pages.
20. What is phishing?
A) A cyber attack to steal user data ✅
B) A type of virus
C) An internet game
D) A search engine
📘 Phishing is a fraudulent attempt to obtain sensitive information.
21. What is the function of antivirus software?
A) Increase speed
B) Scan and remove malware ✅
C) Create files
D) Browse the internet
📘 Antivirus detects and removes malicious software.
22. Which is not an example of operating systems?
A) Windows
B) Linux
C) MS Office ✅
D) macOS
📘 MS Office is an application software, not an OS.
23. Which of the following is used to move the cursor on screen?
A) Printer
B) Monitor
C) Mouse ✅
D) CPU
📘 Mouse is a pointing device used for navigation.
24. What does GUI stand for?
A) Global User Interface
B) Graphical User Interface ✅
C) Graph Unit Integration
D) General Usage Interface
📘 GUI allows users to interact via graphics rather than text.
25. What is the function of a modem?
A) Increases monitor speed
B) Connects computer to internet ✅
C) Prints documents
D) Stores data
📘 Modem modulates and demodulates data for internet access.
Would you like me to continue with Q26–100 now?
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Perfect! Here's the continuation — Q26 to Q100 of the Most Repeated SSC General Awareness – Computer Basics questions in ✅ MCQ format with 📘 brief explanations — all right here in chat, no files.
💻 Computer Basics – Questions 26 to 100
26. Which one is NOT an output device?
A) Monitor
B) Printer
C) Speaker
D) Touchpad ✅
📘 Touchpad is an input device, not output.
27. What is the full form of LAN?
A) Local Area Network ✅
B) Long Area Network
C) Line Access Network
D) Limited Access Node
📘 LAN connects computers within a limited area.
28. A computer virus is a:
A) Hardware
B) System software
C) Malicious software ✅
D) Anti-virus
📘 Virus is a type of malware that damages files or systems.
29. Which of the following is an example of storage device?
A) CPU
B) RAM
C) Hard Disk ✅
D) Monitor
📘 Hard disk stores data permanently.
30. Shortcut for 'Undo' is:
A) Ctrl + V
B) Ctrl + C
C) Ctrl + Z ✅
D) Ctrl + X
📘 Ctrl + Z is used to undo last action.
31. Which company developed Windows OS?
A) Apple
B) IBM
C) Microsoft ✅
D) Google
📘 Microsoft created Windows, first released in 1985.
32. What is the binary number system based on?
A) 8
B) 10
C) 2 ✅
D) 16
📘 Binary uses only 0 and 1.
33. Which of these is not a web browser?
A) Chrome
B) Mozilla
C) Internet Explorer
D) Windows ✅
📘 Windows is an OS, not a browser.
34. The smallest unit of memory is:
A) Byte
B) Bit ✅
C) Nibble
D) Word
📘 Bit is the smallest data unit (binary digit: 0 or 1).
35. What type of software is MS Excel?
A) Operating System
B) Word Processor
C) Spreadsheet ✅
D) Database
📘 Excel is used for data analysis and tabulation.
36. What does USB stand for?
A) Universal Standard Bus
B) Uniform Serial Bus
C) Universal Serial Bus ✅
D) Unified Service Bus
📘 USB is used to connect devices to a computer.
37. Which of these is a file extension of an image?
A) .mp3
B) .jpg ✅
C) .exe
D) .docx
📘 .jpg is a standard format for images.
38. Which memory is temporary?
A) ROM
B) RAM ✅
C) Hard Disk
D) Pen Drive
📘 RAM is volatile and used during active processes.
39. What is the function of a compiler?
A) Execute program
B) Edit program
C) Convert high-level code to machine code ✅
D) Store program
📘 Compiler translates source code into executable code.
40. What is the full form of HTML?
A) HyperText Markup Language ✅
B) HighText Machine Language
C) HyperTool Machine Language
D) None of the above
📘 HTML is used to design web pages.
41. What is the full form of ICT?
A) Information Common Technology
B) Internal Communication Tool
C) Information and Communication Technology ✅
D) Integrated Computer Technology
📘 ICT includes all technology used to handle communication.
42. Who is considered the father of computers?
A) Charles Babbage ✅
B) Alan Turing
C) Bill Gates
D) Tim Berners-Lee
📘 Babbage designed the first mechanical computer.
43. What is the primary function of the operating system?
A) Edit documents
B) Store data
C) Manage hardware and software ✅
D) Draw pictures
📘 OS acts as an interface between user and hardware.
44. What is used to print hard copies?
A) Monitor
B) Scanner
C) Printer ✅
D) Modem
📘 Printers output documents onto paper.
45. What type of device is a scanner?
A) Input ✅
B) Output
C) Storage
D) Processing
📘 Scanners digitize physical content.
46. What does 'Ctrl + S' do?
A) Start program
B) Save file ✅
C) Select text
D) Share content
📘 Ctrl + S saves the current file.
47. What is a computer network?
A) Single computer
B) Set of connected devices ✅
C) Storage device
D) A software
📘 A network allows multiple computers to connect and share.
48. Full form of PDF is:
A) Portable Document Format ✅
B) Printed Document File
C) Public Document Format
D) Page Definition File
📘 PDF is used to present documents consistently.
49. Which of these is an anti-virus software?
A) Chrome
B) Norton ✅
C) VLC
D) Google
📘 Norton scans and removes viruses.
50. What is an IP address?
A) Software code
B) Internet program
C) Unique identifier for a device on a network ✅
D) File name
📘 IP address helps in identifying devices online.
Remaining: Q51–100 👇
Let me know and I’ll send them immediately in this same format — or I can continue right now if you're ready!
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ChatGPT said:
Awesome! Here's the final set — Q51 to Q100 of the 100 Most Repeated SSC General Awareness (Computer Basics) MCQs with ✅ correct answers and 📘 brief explanations, all in chat:
💻 Computer Basics – Questions 51 to 100
51. Which of the following is NOT a programming language?
A) Python
B) Java
C) HTML
D) MS Word ✅
📘 MS Word is a word processor, not a programming language.
52. What is the default file extension for MS Word 2010?
A) .txt
B) .xls
C) .doc
D) .docx ✅
📘 .docx is the updated format for Word documents.
53. What is the full form of GUI?
A) Graphical User Interface ✅
B) General User Interface
C) Global Uniform Interface
D) Generated User Index
📘 GUI allows users to interact with a computer using visuals.
54. Which one is a system software?
A) MS Excel
B) Windows OS ✅
C) PowerPoint
D) Chrome
📘 System software includes OS like Windows.
55. The brain of the computer is:
A) RAM
B) Hard disk
C) CPU ✅
D) Monitor
📘 CPU handles all processing tasks.
56. What is the full form of URL?
A) Uniform Resource Locator ✅
B) Unified Router Line
C) Unique Resource Location
D) None of the above
📘 URL is the web address of a resource.
57. What is phishing?
A) Virus attack
B) Fraudulent attempt to obtain sensitive info ✅
C) Backup tool
D) Programming technique
📘 Phishing is an online scam targeting passwords or data.
58. A kilobyte is equal to:
A) 1024 bits
B) 1000 bytes
C) 1024 bytes ✅
D) 1 million bytes
📘 1 KB = 1024 bytes.
59. What does HTTP stand for?
A) High Tech Transfer Protocol
B) HyperText Transfer Protocol ✅
C) HyperText Transmission Process
D) Home Text Tool Program
📘 HTTP is used in data communication over the web.
60. Which of these is not a search engine?
A) Bing
B) DuckDuckGo
C) Google
D) Firefox ✅
📘 Firefox is a browser, not a search engine.
61. Which memory is permanent?
A) RAM
B) Cache
C) ROM ✅
D) DRAM
📘 ROM is non-volatile and permanent.
62. Which one is an example of open-source software?
A) Windows
B) MS Office
C) Linux ✅
D) iOS
📘 Linux is freely available and open source.
63. Excel files are saved with extension:
A) .doc
B) .xlsx ✅
C) .ppt
D) .txt
📘 .xlsx is used for Excel spreadsheets.
64. What is used for internet connectivity?
A) Pen Drive
B) Joystick
C) Modem ✅
D) Scanner
📘 Modem modulates/demodulates digital signals for internet.
65. What is the main function of an ALU?
A) Storage
B) Logical operations ✅
C) Display
D) Control
📘 ALU performs arithmetic and logic operations.
66. Ctrl + C is used to:
A) Cut
B) Close
C) Copy ✅
D) Clear
📘 Ctrl + C is the shortcut for copy.
67. What is freeware?
A) Trial version software
B) Free software with restrictions
C) Completely free software ✅
D) Software with viruses
📘 Freeware is free to use, but not open source.
68. The default extension for PowerPoint is:
A) .ppt ✅
B) .doc
C) .xls
D) .pdf
📘 PowerPoint saves presentations with .ppt or .pptx.
69. What is cloud computing?
A) Programming language
B) Internet-based computing ✅
C) Hardware storage
D) Virus protection
📘 Cloud computing allows online storage and access.
70. What is the smallest addressable unit of memory?
A) Byte ✅
B) Word
C) Bit
D) Page
📘 A byte (8 bits) is the smallest addressable memory unit.
71. Which device converts digital signals to analog?
A) Router
B) Modem ✅
C) Scanner
D) Speaker
📘 Modem modulates signals for transmission.
72. Which key opens the Start menu in Windows?
A) Ctrl
B) Esc
C) Windows Key ✅
D) Alt
📘 Windows key brings up the Start menu.
73. Which part of a computer connects all hardware?
A) RAM
B) ROM
C) Motherboard ✅
D) Power Supply
📘 Motherboard is the central hub of all components.
74. What is an ISP?
A) Internet Security Protocol
B) Internal System Port
C) Internet Service Provider ✅
D) Internet Sharing Platform
📘 ISPs provide internet to users (e.g., Airtel, Jio).
75. Which one is a web server?
A) Google Docs
B) Apache ✅
C) Excel
D) Android
📘 Apache serves web content to users.
76. A website’s home page is like:
A) A book’s cover
B) Index of a book ✅
C) Back page
D) Bookmark
📘 Home page is the entry point of a site.
77. What is encryption?
A) Deleting data
B) Compressing files
C) Securing data ✅
D) Formatting system
📘 Encryption converts data into coded form.
78. Which key is used for refreshing a page?
A) F5 ✅
B) F1
C) Esc
D) Ctrl
📘 F5 refreshes most browser or file explorer windows.
79. What is an algorithm?
A) Storage system
B) Set of logical steps to solve a problem ✅
C) Data format
D) Type of malware
📘 Algorithms are instructions for processing data.
80. The software that controls the hardware is called:
A) MS Word
B) Operating System ✅
C) Compiler
D) Driver
📘 OS manages both software and hardware resources.
81. What does .com in a website mean?
A) Commercial ✅
B) Communication
C) Computer
D) Common
📘 .com indicates a commercial domain.
82. Which key combination is used to paste?
A) Ctrl + V ✅
B) Ctrl + P
C) Ctrl + X
D) Ctrl + A
📘 Ctrl + V pastes the copied content.
83. What does VoIP stand for?
A) Voice over Internet Protocol ✅
B) Video over Internet Port
C) Virtual Optical Interface Program
D) Voice of Input Program
📘 VoIP allows calls over internet.
84. BIOS stands for:
A) Basic Input Output System ✅
B) Binary Input Output Server
C) Basic Interface Output Server
D) Built-In Operating Software
📘 BIOS is the firmware to boot the system.
85. What is Google Chrome?
A) Word Processor
B) Operating System
C) Browser ✅
D) Storage Device
📘 Chrome is a web browser.
86. Which of these is volatile memory?
A) Hard disk
B) ROM
C) RAM ✅
D) CD-ROM
📘 RAM is temporary and loses data on shutdown.
87. Bluetooth is used for:
A) Large network
B) File transfers over short distance ✅
C) Internet
D) Printing
📘 Bluetooth is for short-range wireless communication.
88. What does 'bit' stand for?
A) Binary digit ✅
B) Basic integer
C) Binary integer
D) Built-in tool
📘 Bit = smallest unit of digital information.
89. An example of an input device is:
A) Printer
B) Monitor
C) Keyboard ✅
D) Speaker
📘 Keyboard inputs data into a computer.
90. Which of the following is a portable OS?
A) Android ✅
B) Windows 11
C) Linux Mint
D) macOS
📘 Android is portable and runs on mobile devices.
91. Which key is used for help in many apps?
A) F12
B) F1 ✅
C) Esc
D) Tab
📘 F1 opens the help menu.
92. What does Ctrl + P do?
A) Paste
B) Print ✅
C) Preview
D) Paint
📘 Ctrl + P opens the print dialog.
93. CAPTCHA is used to:
A) Scan viruses
B) Prove user is human ✅
C) Encrypt data
D) Reset passwords
📘 CAPTCHA blocks bots online.
94. A collection of interconnected web pages is called:
A) Document
B) Web page
C) Website ✅
D) Server
📘 Website = group of web pages under one domain.
95. What does SSD stand for?
A) Safe System Drive
B) Solid State Drive ✅
C) Simple Storage Device
D) Serial Software Disk
📘 SSD is a faster storage device than HDD.
96. Which key is used to delete selected text?
A) Tab
B) Shift
C) Delete ✅
D) Insert
📘 Del removes selected content.
97. What is the full form of DNS?
A) Digital Numbering System
B) Domain Name System ✅
C) Data Network Server
D) Direct Network Service
📘 DNS translates domain names to IP addresses.
98. Which of the following is used to backup data?
A) Recycle Bin
B) Antivirus
C) External Hard Drive ✅
D) Task Manager
📘 External drives help save data externally.
99. Which of these is NOT a valid file format?
A) .exe
B) .mp4
C) .png
D) .zipx ✅
📘 .zipx is rare and not widely supported in SSC questions.
100. Who invented the World Wide Web (WWW)?
A) Steve Jobs
B) Charles Babbage
C) Tim Berners-Lee ✅
D) Larry Page
📘 He developed the first web browser in 1989.
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