If you’re looking for trusted Computer Fundamentals MCQ questions for competitive exams, you’re in the right place. Computer Fundamentals is a core subject asked in SSC, Banking, Railways, State Government, Polytechnic, etc exams.
This set includes 100 carefully selected Computer Fundamentals MCQs in a quiz-style format, covering all important topics such as computer basics, hardware, software, memory, operating systems, and internet fundamentals.
You can also download all these Computer Fundamentals MCQ questions as a free PDF. The PDF download section is available at the end of this article.
Computer Fundamentals MCQ for 2026
These latest Computer Fundamentals MCQs are designed to test your basic computer knowledge.
Each question is based on commonly asked topics in competitive exams like SSC, Banking, Railways, State Govt, and Polytechnic. Read each quiz first and try to answer it yourself, then only click the dropdown button next to it to find the correct answer and explanation.
Q1. Who is widely recognized as the “Father of Computers”?
A. Alan Turing
B. Charles Babbage
C. John von Neumann
D. Blaise Pascal
Show Answer
Answer: B
Charles Babbage designed the Analytical Engine, which formed the basic framework for modern computers.
Q2. Which electronic component was used in First Generation computers?
A. Transistors
B. Integrated Circuits
C. Vacuum Tubes
D. Microprocessors
Show Answer
Answer: C
First-generation computers (1940-1956) relied on vacuum tubes for circuitry and magnetic drums for memory.
Q3. What is the full form of the abbreviation CPU?
A. Control Processing Unit
B. Central Programming Unit
C. Central Processing Unit
D. Command Power Unit
Show Answer
Answer: C
The Central Processing Unit (CPU) is often referred to as the “brain” of the computer system.
Q4. In computer systems, which unit is responsible for performing mathematical calculations?
A. Control Unit
B. Register Unit
C. Arithmetic Logic Unit
D. Memory Unit
Show Answer
Answer: C
The ALU (Arithmetic Logic Unit) handles all arithmetic (addition, subtraction) and logical operations.
Q5. Which of the following is considered the smallest unit of data in a computer?
A. Byte
B. Bit
C. Nibble
D. Kilobyte
Show Answer
Answer: B
A “Bit” (Binary Digit) represents a logical state with one of two values, 0 or 1.
Q6. 1024 Bytes is exactly equal to which of the following?
A. 1 Megabyte (MB)
B. 1 Gigabyte (GB)
C. 1 Kilobyte (KB)
D. 1 Terabyte (TB)
Show Answer
Answer: C
In digital storage, 1024 bytes equals 1 Kilobyte based on the binary system.
Q7. What type of memory is RAM (Random Access Memory)?
A. Permanent
B. Volatile
C. Non-volatile
D. Secondary
Show Answer
Answer: B
RAM is volatile memory, meaning it loses its stored data when the power is turned off.
Q8. Which among the following is an example of an Input Device?
A. Monitor
B. Printer
C. Scanner
D. Speaker
Show Answer
Answer: C
A scanner is an input device that converts physical documents or images into digital data.
Q9. What is the main function of the Operating System?
A. To perform arithmetic calculations
B. To manage hardware and software resources
C. To protect against physical damage
D. To design web pages
Show Answer
Answer: B
The OS acts as an intermediary between the user and the computer hardware to manage system resources.
Q10. Which of the following is an example of System Software?
A. MS Word
B. Windows 11
C. Adobe Photoshop
D. Google Chrome
Show Answer
Answer: B
Windows is an Operating System, which is the most common type of system software.
Q11. What is the permanent memory built into your computer called?
A. RAM
B. ROM
C. CPU
D. CD-ROM
Show Answer
Answer: B
Read-Only Memory (ROM) is non-volatile and contains essential instructions for booting the system.
Q12. What does “GUI” stand for in computer terminology?
A. Global User Index
B. Graphical User Interface
C. General Usage Interaction
D. Graphic Unit Information
Show Answer
Answer: B
GUI allows users to interact with devices through visual icons and audio indicators.
Q13. Which shortcut key is used to “Paste” a copied item in Windows?
A. Ctrl + C
B. Ctrl + X
C. Ctrl + V
D. Ctrl + P
Show Answer
Answer: C
Ctrl + V is the standard keyboard shortcut for pasting content from the clipboard.
Q14. What is the full form of HTTP in web addresses?
A. High Text Transfer Protocol
B. Hypertext Transfer Protocol
C. Hyperlink Text Transfer Program
D. Hyper Transfer Text Protocol
Show Answer
Answer: B
HTTP is the foundation of data communication for the World Wide Web.
Q15. Which of the following is NOT a high-level programming language?
A. Python
B. Java
C. Machine Language
D. C++
Show Answer
Answer: C
Machine language is a low-level language consisting of binary (0s and 1s) that the CPU understands directly.
Q16. What is the process of starting or restarting a computer called?
A. Execution
B. Booting
C. Loading
D. Processing
Show Answer
Answer: B
Booting is the initial set of operations that a computer system performs when it is switched on.
Q17. Which device is used to connect a computer to the Internet via a telephone line?
A. Router
B. Modem
C. Switch
D. Hub
Show Answer
Answer: B
A Modem (Modulator-Demodulator) converts digital signals to analog and vice versa for transmission.
Q18. A collection of 8 bits is generally known as a:
A. Nibble
B. Byte
C. Word
D. Record
Show Answer
Answer: B
A byte is a unit of data that is eight binary digits long.
Q19. Which key on a standard keyboard is used to cancel a command or close a dialog box?
A. Enter
B. Shift
C. Esc (Escape)
D. Alt
Show Answer
Answer: C
The Escape key is used to abort or stop an ongoing process or close popup windows.
Q20. What is the physical part of the computer called?
A. Software
B. Hardware
C. Middleware
D. Shareware
Show Answer
Answer: B
Hardware refers to the tangible, physical components of a computer system like the keyboard or CPU.
Q21. Which company developed the Windows Operating System?
A. Apple
B. Google
C. Microsoft
D. IBM
Show Answer
Answer: C
Microsoft introduced Windows in 1985 as a graphical operating system shell.
Q22. In Microsoft Excel, what are the files called?
A. Documents
B. Workbooks
C. Worksheets
D. Presentations
Show Answer
Answer: B
An Excel file is referred to as a Workbook, which can contain multiple Worksheets.
Q23. Which of the following is an example of an “Optical Disk”?
A. Hard Disk
B. Floppy Disk
C. Digital Versatile Disk (DVD)
D. Magnetic Tape
Show Answer
Answer: C
DVDs use laser light (optical technology) to read and write data.
Q24. What does the term “BIOS” stand for?
A. Basic Input Output System
B. Binary Input Output Software
C. Basic Internal Operating System
D. Business Information Output System
Show Answer
Answer: A
BIOS is firmware used to perform hardware initialization during the booting process.
Q25. Which computer component is responsible for cooling the processor?
A. Motherboard
B. Heat Sink and Fan
C. SMPS
D. CMOS Battery
Show Answer
Answer: B
Heat sinks and fans dissipate the heat generated by the CPU to prevent overheating.
Q26. What is the shortcut key for “Undo” in most Windows applications?
A. Ctrl + U
B. Ctrl + Y
C. Ctrl + Z
D. Ctrl + R
Show Answer
Answer: C
Ctrl + Z is the universal shortcut to reverse the last action performed.
Q27. A computer on a network that requests resources from another computer is called a:
A. Server
B. Client
C. Node
D. Host
Show Answer
Answer: B
In a network, the client makes requests, and the server provides the requested services or data.
Q28. Which of the following is the largest unit of storage?
A. Gigabyte (GB)
B. Terabyte (TB)
C. Megabyte (MB)
D. Petabyte (PB)
Show Answer
Answer: D
Among the options, a Petabyte (1024 TB) is the largest unit of storage capacity.
Q29. What type of software is “Open Office” or “LibreOffice”?
A. Proprietary Software
B. Open Source Software
C. System Software
D. Malware
Show Answer
Answer: B
Open Source software allows anyone to inspect, modify, and enhance the source code.
Q30. What is the full form of LAN in networking?
A. Local Area Network
B. Large Area Network
C. Long Access Network
D. Local Access Node
Show Answer
Answer: A
LAN connects computers within a limited area such as a home, school, or office building.
Q31. Which of these is a popular Search Engine?
A. Windows Explorer
B. Google
C. MS Office
D. VLC Media Player
Show Answer
Answer: B
Google is currently the most widely used search engine on the internet.
Q32. In MS Word, what does the “Red Wavy Line” under a word indicate?
A. Grammar Error
B. Spelling Error
C. Formatting Error
D. Hyperlink
Show Answer
Answer: B
A red wavy line indicates that a word is potentially misspelled or not in the dictionary.
Q33. Which generation of computers used Microprocessors?
A. First Generation
B. Second Generation
C. Third Generation
D. Fourth Generation
Show Answer
Answer: D
Fourth-generation computers (1971-present) use Large Scale Integration (LSI) and microprocessors.
Q34. What does “URL” stand for?
A. Uniform Resource Locator
B. Universal Radio Line
C. United Resource Link
D. Uniform Refresh Link
Show Answer
Answer: A
A URL is the global address of documents and other resources on the World Wide Web.
Q35. Which of the following is an example of an Output Device?
A. Mouse
B. Keyboard
C. Printer
D. Joystick
Show Answer
Answer: C
Printers are output devices that produce a hard copy (on paper) of digital information.
Q36. What is the full form of PDF?
A. Portable Document Format
B. Personal Data File
C. Printable Document File
D. Portable Digital Folder
Show Answer
Answer: A
PDF is a file format used to present documents independent of software, hardware, or OS.
Q37. Which memory acts as a high-speed bridge between the CPU and RAM?
A. Secondary Memory
B. Flash Memory
C. Cache Memory
D. Virtual Memory
Show Answer
Answer: C
Cache memory stores frequently used data to speed up processing by the CPU.
Q38. In a computer, what is the “Motherboard”?
A. A type of software
B. The main circuit board of the computer
C. An operating system
D. A storage device
Show Answer
Answer: B
The motherboard connects all major components like the CPU, RAM, and storage drives.
Q39. What is the shortcut key to “Select All” text in a document?
A. Ctrl + S
B. Ctrl + A
C. Ctrl + L
D. Ctrl + Alt + A
Show Answer
Answer: B
Ctrl + A is used to highlight or select all items in the current window or document.
Q40. Which of the following is a primary storage device?
A. Hard Disk
B. RAM
C. Pen Drive
D. CD-ROM
Show Answer
Answer: B
RAM is considered primary storage because the CPU accesses it directly for data processing.
Q41. What is the extension of a Microsoft PowerPoint presentation file?
A. .docx
B. .xlsx
C. .pptx
D. .txt
Show Answer
Answer: C
.pptx is the default file format for PowerPoint presentations since the 2007 version.
Q42. Which among these is a “Malicious Software” designed to damage a computer?
A. Firmware
B. Malware
C. Freeware
D. Shareware
Show Answer
Answer: B
Malware (Malicious Software) includes viruses, worms, and trojans that harm computer systems.
Q43. A “Half-Byte” (4 bits) is also known as a:
A. Word
B. Data
C. Nibble
D. Bit
Show Answer
Answer: C
A nibble consists of 4 bits; two nibbles make up one byte.
Q44. What is the full form of WWW?
A. World Wide Web
B. Whole World Web
C. World Wide Website
D. Web World Wide
Show Answer
Answer: A
Tim Berners-Lee invented the World Wide Web in 1989 as a system of interlinked hypertext documents.
Q45. Which part of the computer is called the “Brain”?
A. RAM
B. Hard Disk
C. CPU
D. Monitor
Show Answer
Answer: C
The CPU processes all instructions and manages the flow of data within the computer.
Q46. Which function key is used to “Refresh” the desktop or a web page?
A. F2
B. F5
C. F7
D. F11
Show Answer
Answer: B
Pressing F5 refreshes the active window, whether it’s the desktop or a browser page.
Q47. What is the binary equivalent of the decimal number 2?
A. 01
B. 11
C. 10
D. 00
Show Answer
Answer: C
In binary notation, 0=0, 1=1, and 2 is represented as 10.
Q48. Which of the following is a “Social Networking” site?
A. Amazon
B. Facebook
C. eBay
D. Wikipedia
Show Answer
Answer: B
Facebook is an online social media platform that allows users to connect with friends and family.
Q49. Which port is commonly used to connect a mouse or keyboard today?
A. PS/2
B. Serial Port
C. USB Port
D. Parallel Port
Show Answer
Answer: C
USB (Universal Serial Bus) is the standard connection for modern peripherals.
Q50. What is the name of the first mechanical computer designed by Charles Babbage?
A. ENIAC
B. Analytical Engine
C. Calculator
D. Abacus
Show Answer
Answer: B
The Analytical Engine was a proposed mechanical general-purpose computer.
Q51. Which shortcut key is used to save a file in Windows?
A. Ctrl + P
B. Ctrl + S
C. Ctrl + N
D. Ctrl + Z
Show Answer
Answer: B
Ctrl + S is the shortcut to save the current document or file.
Q52. What is the full form of IP in computer networks?
A. Internet Protocol
B. Internal Protocol
C. Intranet Program
D. Instant Protocol
Show Answer
Answer: A
IP is the set of rules governing the format of data sent via the internet or local network.
Q53. Which of the following is an example of an Operating System?
A. Linux
B. Microsoft Word
C. Google Chrome
D. Photoshop
Show Answer
Answer: A
Linux is a popular open-source operating system used in servers and personal computers.
Q54. What does the term “E-mail” stand for?
A. Easy Mail
B. Essential Mail
C. Electronic Mail
D. Express Mail
Show Answer
Answer: C
Electronic Mail is a method of exchanging messages between people using electronic devices.
Q55. In MS Word, which feature is used to check for synonyms of a word?
A. Spell Check
B. Thesaurus
C. Word Count
D. Grammar Check
Show Answer
Answer: B
The Thesaurus tool helps users find words with similar meanings to improve their writing.
Q56. Which of the following is a non-volatile memory?
A. RAM
B. Cache Memory
C. ROM
D. Registers
Show Answer
Answer: C
ROM (Read-Only Memory) keeps its data even after the power is turned off.
Q57. What is the full form of SQL?
A. Structured Query Language
B. Simple Query Language
C. System Query Language
D. Standard Query List
Show Answer
Answer: A
SQL is the standard language used for managing and manipulating relational databases.
Q58. Which of these is a widely used Web Browser?
A. Google Chrome
B. Yahoo
C. Bing
D. MSN
Show Answer
Answer: A
Google Chrome is a web browser, whereas Yahoo and Bing are primarily search engines.
Q59. What does the “C” in CPU stand for?
A. Computer
B. Central
C. Control
D. Calculation
Show Answer
Answer: B
CPU stands for Central Processing Unit.
Q60. Which of the following is NOT an input device?
A. Keyboard
B. Mouse
C. Monitor
D. Microphone
Show Answer
Answer: C
A monitor is an output device that displays visual information from the computer.
Q61. What is the term for a temporary storage area that speeds up data retrieval?
A. Cache
B. Hard Drive
C. ROM
D. BIOS
Show Answer
Answer: A
Cache memory stores recently used information for rapid access by the processor.
Q62. What is the shortcut key to “Print” a document?
A. Ctrl + P
B. Ctrl + I
C. Ctrl + D
D. Ctrl + Shift + P
Show Answer
Answer: A
Ctrl + P opens the print dialog box in almost all Windows programs.
Q63. Which part of the CPU performs logical comparisons like greater than or less than?
A. ALU
B. Control Unit
C. Register
D. Cache
Show Answer
Answer: A
The Arithmetic Logic Unit (ALU) is responsible for both calculations and logical comparisons.
Q64. What is the most common operating system for mobile phones today?
A. Windows
B. Android
C. Linux
D. DOS
Show Answer
Answer: B
Android, developed by Google, is the most widely used mobile operating system globally.
Q65. What is the full form of RAM?
A. Read Access Memory
B. Random Access Memory
C. Ready Access Memory
D. Rapid Access Memory
Show Answer
Answer: B
RAM allows data items to be read or written in almost the same amount of time regardless of location.
Q66. Which storage device is used to store data semi-permanently on a computer?
A. RAM
B. Hard Disk Drive (HDD)
C. Monitor
D. Keyboard
Show Answer
Answer: B
HDDs are magnetic storage devices used to store large amounts of data permanently.
Q67. What is the name of the software that allows you to view web pages?
A. Search Engine
B. Web Browser
C. Operating System
D. Word Processor
Show Answer
Answer: B
A web browser is an application used to access and view websites on the internet.
Q68. Which of the following is a shortcut for “Cut”?
A. Ctrl + C
B. Ctrl + V
C. Ctrl + X
D. Ctrl + Z
Show Answer
Answer: C
Ctrl + X removes the selected item and places it on the clipboard for pasting.
Q69. In Excel, what is the intersection of a row and a column called?
A. Box
B. Cell
C. Block
D. Table
Show Answer
Answer: B
A cell is the basic unit of a worksheet where data like text or numbers are entered.
Q70. What is the full form of “LCD”?
A. Liquid Crystal Display
B. Light Crystal Display
C. Liquid Compact Display
D. Local Crystal Display
Show Answer
Answer: A
LCD is a flat-panel display technology commonly used in monitors and TV screens.
Q71. Which key is used to delete the character to the left of the cursor?
A. Delete Key
B. Backspace Key
C. Enter Key
D. Shift Key
Show Answer
Answer: B
The Backspace key deletes text to the left, while the Delete key removes text to the right.
Q72. What is the full form of PNG?
A. Portable Network Graphics
B. Public Network Graphics
C. Portable New Graphics
D. Personal Network Graph
Show Answer
Answer: A
PNG is a popular image file format that supports lossless data compression.
Q73. Which part of the computer is essential to play games with better graphics?
A. Sound Card
B. Graphics Card (GPU)
C. Ethernet Card
D. CD Drive
Show Answer
Answer: B
A Graphics Processing Unit (GPU) handles the complex rendering of images and video.
Q74. What is the shortcut key to close an active window?
A. Alt + F4
B. Ctrl + F4
C. Shift + F4
D. Win + F4
Show Answer
Answer: A
Alt + F4 is the standard Windows command to close the currently focused application.
Q75. What type of device is a “Joystick”?
A. Output Device
B. Input Device
C. Storage Device
D. Processing Device
Show Answer
Answer: B
A joystick is an input device used mainly for controlling movements in video games.
Q76. Which of the following is a “Binary Number”?
A. 120
B. 101
C. 202
D. 555
Show Answer
Answer: B
Binary numbers only consist of the digits 0 and 1.
Q77. What is the full form of MB in computer storage?
A. Megabit
B. Megabyte
C. Microbyte
D. Mini Byte
Show Answer
Answer: B
A Megabyte is equal to 1,024 Kilobytes.
Q78. Which of these is the first electronic digital computer?
A. ENIAC
B. UNIVAC
C. EDVAC
D. Abacus
Show Answer
Answer: A
ENIAC (Electronic Numerical Integrator and Computer) was the first programmable general-purpose electronic computer.
Q79. Which language does the computer understand directly?
A. Python
B. Machine Language
C. BASIC
D. Java
Show Answer
Answer: B
Machine language is the only language that a computer’s CPU can execute directly without translation.
Q80. What is a “Firewall” used for in computers?
A. Security and protection
B. Increasing speed
C. Storing data
D. Cooling the system
Show Answer
Answer: A
A firewall monitors and controls incoming and outgoing network traffic to prevent unauthorized access.
Q81. What is the full form of USB?
A. Universal Serial Bus
B. United Serial Bus
C. Uniform System Bus
D. Universal System Board
Show Answer
Answer: A
USB is an industry standard for cables and connectors for communication between computers and devices.
Q82. In MS Word, which key combination is used to “Bold” text?
A. Ctrl + B
B. Ctrl + I
C. Ctrl + U
D. Ctrl + Shift + B
Show Answer
Answer: A
Ctrl + B is used to apply or remove the bold formatting from selected text.
Q83. Which of the following is a cloud storage service?
A. Google Drive
B. Photoshop
C. MS Excel
D. Windows Defender
Show Answer
Answer: A
Google Drive allows users to store files online and access them from any device.
Q84. What is the smallest unit of an image on a computer screen?
A. Bit
B. Pixel
C. Dot
D. Byte
Show Answer
Answer: B
A pixel (picture element) is a single physical point in a raster image.
Q85. Which protocol is used to send emails?
A. HTTP
B. SMTP
C. FTP
D. IP
Show Answer
Answer: B
SMTP (Simple Mail Transfer Protocol) is the standard for electronic mail transmission.
Q86. What is the full form of CD-ROM?
A. Compact Disk Read Only Memory
B. Computer Disk Read Only Memory
C. Compact Data Read Only Memory
D. Control Disk Read Only Memory
Show Answer
Answer: A
A CD-ROM is a pre-pressed optical compact disc that contains data that cannot be modified.
Q87. Which of these is an example of an antivirus software?
A. Norton
B. Firefox
C. Android
D. Oracle
Show Answer
Answer: A
Norton is a popular antivirus program designed to detect and remove malware.
Q88. What is the function of the “Recycle Bin” in Windows?
A. To store deleted files temporarily
B. To store downloaded files
C. To clean the computer disk
D. To run old programs
Show Answer
Answer: A
The Recycle Bin stores deleted files, allowing them to be restored if needed before permanent deletion.
Q89. Which key is used to “Indent” a paragraph in MS Word?
A. Tab Key
B. Space Key
C. Enter Key
D. Alt Key
Show Answer
Answer: A
The Tab key is commonly used to shift the cursor several spaces to the right (indentation).
Q90. What is the main page of a website called?
A. Front Page
B. Home Page
C. First Page
D. Main Page
Show Answer
Answer: B
The home page serves as the starting point or main directory of a website.
Q91. What does “SSD” stand for in computer storage?
A. Solid State Drive
B. Super Speed Drive
C. System Storage Drive
D. Software Storage Disk
Show Answer
Answer: A
SSD is a faster and more durable storage device compared to traditional Hard Disk Drives.
Q92. Which of these is NOT a search engine?
A. Google
B. Bing
C. DuckDuckGo
D. WhatsApp
Show Answer
Answer: D
WhatsApp is a messaging application, not a search engine like the others listed.
Q93. What is the full form of LAN?
A. Local Area Network
B. Logical Area Network
C. Line Area Network
D. Level Area Network
Show Answer
Answer: A
LAN is a computer network that spans a small geographical area like a home or office.
Q94. Which of the following is a shortcut to “Reboot” or “Restart” a PC in a hung state?
A. Ctrl + Alt + Delete
B. Alt + Shift + Del
C. Ctrl + Shift + Esc
D. Win + L
Show Answer
Answer: A
Ctrl + Alt + Del opens options to restart, sign out, or open the Task Manager.
Q95. What is the name of the bar at the bottom of the Windows desktop?
A. Title Bar
B. Status Bar
C. Taskbar
D. Menu Bar
Show Answer
Answer: C
The Taskbar displays currently running applications and the Start menu button.
Q96. Which part of the computer is responsible for high-speed internet connection via fiber/cable?
A. Ethernet Card/NIC
B. Graphics Card
C. Sound Card
D. Processor
Show Answer
Answer: A
A Network Interface Card (NIC) allows a computer to connect to a network.
Q97. What is “Hyperlink” in the context of the web?
A. A high-speed internet link
B. A clickable link that opens another page
C. A type of computer virus
D. A graphic image
Show Answer
Answer: B
A hyperlink is a reference to data that the user can follow by clicking or tapping.
Q98. What is the full form of Mbps?
A. Megabits per second
B. Megabytes per second
C. Megabits per system
D. Main bits per second
Show Answer
Answer: A
Mbps is a unit of measurement for data transfer speed (bandwidth).
Q99. Which of the following is used for creating presentations?
A. MS Word
B. MS Excel
C. MS PowerPoint
D. MS Access
Show Answer
Answer: C
Microsoft PowerPoint is a program used to create slide-based presentations.
Q100. What is the permanent storage on a computer called?
A. Primary Memory
B. Secondary Memory
C. Cache Memory
D. Register Memory
Show Answer
Answer: B
Secondary memory (like Hard Disks or SSDs) is used for long-term data storage.
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More Computer Fundamentals Learning Resources:
- Computer Basics – Wikipedia
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