100 Important Computer MCQs for PPSC, FPSC, NTS

Prepare with these 100 important Computer MCQs for PPSC, FPSC, NTS, ETEA, OTS, GHQ and other One Paper examinations. The questions cover computer fundamentals, hardware and memory, operating systems, MS Office, networking, Internet, cybersecurity and important abbreviations. Each MCQ includes four options, the correct answer and a concise explanation to help you understand the concept instead of simply memorizing the answer.

These MCQs are designed around commonly tested computer topics in competitive examinations. The set combines frequently studied concepts with fresh questions and explanations prepared for SirNadir.com.

Who Should Use This? PPSC One Paper (Assistant, ASI, Sub-Inspector), FPSC, NTS, OTS, GHQ LDC/UDC, NCCIA, ETEA and computer sections in One Paper examinations. Try completing all 100 under timed conditions.

Why This Post Is Strong — What Makes These 100 Important?

These MCQs are based on commonly tested computer topics in competitive and One Paper examinations, with a focus on frequently studied areas. The 100 questions cover computer fundamentals, hardware, memory, operating systems, MS Office, networking, Internet, cybersecurity and important abbreviations, focusing more on high-frequency areas while covering a broad range of commonly tested topics.

What to Prepare for Computer in One Paper Exams

Important: Based on a review of commonly tested topics in competitive-exam computer papers, the list below is a practical guide — not an official board notice. Use it to prioritize revision, not as a confirmed paper pattern.

Area	What to Study (High Frequency)	This Post
Fundamentals & History	Generations, ENIAC/UNIVAC, inventors (Babbage, Berners-Lee, Tomlinson, McCarthy), Bit/Byte/KB/MB, volatile vs non-volatile	Q1–20
Hardware & Memory	Input/output, CPU (ALU/CU), high-speed memory (Cache), VDU/DPI, HDD/SSD/CD, USB/HDMI, floppy 1.44 MB	Q21–40
Software & OS	System vs Application, OS examples, GUI, Linux open-source, BIOS, Compiler vs Interpreter, shortcuts Ctrl+C/V/X/Z/S	Q41–60
MS Office	Word/Excel/PowerPoint uses, Ctrl+B/I/U, Calibri, Slide vs Workbook vs Cell, = and SUM, .docx/.xlsx/.pptx	Q61–75
Networking & Internet	LAN/WAN/MAN, IP/URL/HTTP/HTTPS/HTML/WWW, modem/router/switch, email, home page	Q76–90
Security & Abbreviations	Virus/antivirus, firewall, phishing/spam, PDF/DBMS/database, AI/cloud	Q91–100

What to Study First — Priority Order (Do Not Memorize Answers)

Day 1-2: Fundamentals + Abbreviations (Q1-20 & Q91-100) — these are foundational and commonly tested topics.
Day 3-4: MS Office + Shortcuts (Q56-75) — frequently tested in One Paper exams, focus on shortcuts and file extensions.
Day 5: Networking & Internet (Q76-90) — LAN/WAN, IP/URL/HTTP, WWW.
Day 6: Hardware & Memory + Software & OS (Q21-60) — revise with diagrams.
Day 7: Full 100 MCQs timed (45 minutes), mark mistakes and revise only those.

Common Mistakes to Avoid

Memorizing ticks: Boards shuffle options. Learn the concept in the explanation, not “B is correct”.
Confusing volatile vs non-volatile: RAM = volatile, ROM/Hard Disk/CD = non-volatile. Write it once on paper.
Mixing LAN/WAN/MAN: LAN = room/building, MAN = city, WAN = country/world (Internet is WAN).
Forgetting shortcuts: Ctrl+C/V/X/Z/S and Ctrl+B/I/U are commonly tested in computer sections of competitive exams — make a sticky note.
Ignoring file extensions: .docx (Word), .xlsx (Excel), .pptx (PowerPoint) — easy marks, don’t miss.

How to Use These 100: Do 20 MCQs at a time, check answers with explanations, then revise weak topics. All explanations are written specifically for this post in a concise, student-friendly format.

Computer Fundamentals (20)

Q1. What does CPU stand for?

A) Central Program Unit

B) Central Power Unit

C) Computer Processing Unit

D) Central Processing Unit

Answer: D) Central Processing Unit

Explanation: CPU executes instructions; called the brain of the computer.

Q2. Who is known as the Father of the Computer?

A) Alan Turing

B) Bill Gates

C) Charles Babbage

D) Steve Jobs

Answer: C) Charles Babbage

Explanation: Designed the Analytical Engine in the 1830s.

Q3. Which part is called the brain of the computer?

A) Monitor

B) Hard Disk

C) RAM

D) CPU

Answer: D) CPU

Explanation: CPU processes all instructions and calculations.

Q4. Which generation used vacuum tubes?

A) Second Generation

B) Third Generation

C) First Generation

D) Fourth Generation

Answer: C) First Generation

Explanation: First-generation computers (1940–1956), such as ENIAC and UNIVAC, used vacuum tubes.

Q5. What is the smallest unit of data in a computer?

A) Byte

B) Kilobyte

C) Nibble

D) Bit

Answer: D) Bit

Explanation: Bit is binary digit 0 or 1; 8 bits = 1 byte.

Q6. How many bits are in one byte?

A) 4

B) 16

C) 8

D) 32

Answer: C) 8

Explanation: Standard byte is 8 bits.

Q7. How much is 1 Kilobyte?

A) 1000 bytes

B) 512 bytes

C) 100 bytes

D) 1024 bytes

Answer: D) 1024 bytes

Explanation: 1 KB = 1024 bytes in binary system.

Q8. How much is 1 Megabyte?

A) 1000 Kilobytes

B) 1024 Bytes

C) 1024 Kilobytes

D) 512 Kilobytes

Answer: C) 1024 Kilobytes

Explanation: 1 MB = 1024 KB, 1 GB = 1024 MB.

Q9. ENIAC stands for?

A) Electronic Numerical Industrial Automatic Computer

B) Electronic Network Integrator and Calculator

C) Electrical Numerical Integrator and Computer

D) Electronic Numerical Integrator and Computer

Answer: D) Electronic Numerical Integrator and Computer

Explanation: ENIAC was developed in 1945 and is widely recognized as an early general-purpose electronic computer.

Q10. UNIVAC stands for?

A) Universal Array Computer

B) Universal Analog Computer

C) Universal Automatic Computer

D) Universal Application Computer

Answer: C) Universal Automatic Computer

Explanation: First commercial computer, 1951.

Q11. Who invented the World Wide Web (WWW) in 1989?

A) Bill Gates

B) Vint Cerf

C) Steve Jobs

D) Tim Berners-Lee

Answer: D) Tim Berners-Lee

Explanation: Invented WWW at CERN in 1989.

Q12. Who sent the first email in 1971?

A) Charles Babbage

B) Tim Berners-Lee

C) Ray Tomlinson

D) Dennis Ritchie

Answer: C) Ray Tomlinson

Explanation: Introduced the @ symbol in email addresses.

Q13. Who is known as the Father of Artificial Intelligence?

A) Alan Turing

B) Charles Babbage

C) John von Neumann

D) John McCarthy

Answer: D) John McCarthy

Explanation: Coined the term AI in 1956 at Dartmouth Conference.

Q14. What does BIT stand for?

A) Binary Time

B) Binary Transfer

C) Binary Digit

D) Binary Data

Answer: C) Binary Digit

Explanation: Smallest data unit, 0 or 1.

Q15. Which memory is volatile?

A) ROM

B) Hard Disk

C) Cache

D) RAM

Answer: D) RAM

Explanation: RAM loses data when power is off.

Q16. Which type of memory retains data even when the power is turned off?

A) RAM

B) Cache

C) Register

D) ROM

Answer: D) ROM

Explanation: ROM retains data without power; RAM is volatile.

Q17. Which generation used transistors?

A) First

B) Third

C) Fourth

D) Second Generation

Answer: D) Second Generation

Explanation: Second gen (1956-63) used transistors, smaller and faster.

Q18. Which generation used Integrated Circuits (ICs)?

A) Second

B) Fourth

C) Third Generation

D) First

Answer: C) Third Generation

Explanation: Third gen (1964-71) used ICs.

Q19. Which generation used microprocessors?

A) Second

B) Third

C) First

D) Fourth Generation

Answer: D) Fourth Generation

Explanation: Fourth generation introduced microprocessors, beginning in the early 1970s — for example, the Intel 4004.

Q20. ENIAC was developed as which type of computer?

A) First laptop

B) First personal computer

C) First supercomputer

D) First general-purpose electronic computer

Answer: D) First general-purpose electronic computer

Explanation: ENIAC was developed in 1945 at the University of Pennsylvania as the first general-purpose electronic computer.

Hardware & Memory (20)

Q21. Which of the following is an input device?

A) Monitor

B) Printer

C) Speaker

D) Keyboard

Answer: D) Keyboard

Explanation: Keyboard enters text and commands.

Q22. Which of the following is an output device?

A) Scanner

B) Microphone

C) Monitor

D) Keyboard

Answer: C) Monitor

Explanation: Monitor displays visual output.

Q23. Which device works as both input and output?

A) Keyboard

B) Printer

C) Monitor

D) Touch Screen

Answer: D) Touch Screen

Explanation: Touch screen takes touch input and shows output.

Q24. Which is the standard pointing device in GUI?

A) Keyboard

B) Scanner

C) Joystick

D) Mouse

Answer: D) Mouse

Explanation: Mouse controls cursor in graphical interface.

Q25. Which is considered primary memory?

A) Hard Disk

B) CD-ROM

C) Pen Drive

D) RAM

Answer: D) RAM

Explanation: RAM is main memory directly accessed by CPU.

Q26. Which is secondary storage?

A) Register

B) Cache

C) Hard Disk

D) RAM

Answer: C) Hard Disk

Explanation: Hard disk stores data permanently.

Q27. Which of the following is generally faster than RAM and located close to the CPU?

A) Hard Disk

B) RAM

C) CD

D) Cache Memory

Answer: D) Cache Memory

Explanation: Cache is a high-speed memory located close to the CPU and is generally faster than RAM.

Q28. Which part of CPU does arithmetic and logic operations?

A) Control Unit

B) Register

C) Cache

D) ALU (Arithmetic Logic Unit)

Answer: D) ALU (Arithmetic Logic Unit)

Explanation: ALU performs all calculations and comparisons.

Q29. What is the main function of the Control Unit?

A) Store data permanently

B) Perform calculations

C) Display output

D) Direct and control data flow

Answer: D) Direct and control data flow

Explanation: CU coordinates all CPU activities.

Q30. VDU stands for?

A) Visual Data Unit

B) Virtual Display Unit

C) Visual Display Unit

D) Video Display Unit

Answer: C) Visual Display Unit

Explanation: VDU is another name for monitor.

Q31. Screen resolution is measured in?

A) Bytes

B) Hertz

C) Inches

D) Pixels

Answer: D) Pixels

Explanation: More pixels means sharper display.

Q32. DPI stands for?

A) Dots Per Inch

B) Data Per Inch

C) Display Per Inch

D) Dots Per Input

Answer: A) Dots Per Inch

Explanation: DPI (dots per inch) is commonly used to describe printer resolution.

Q33. Which printer is commonly known for high-quality text printing?

A) Dot Matrix

B) Laser Printer

C) Inkjet

D) Drum

Answer: B) Laser Printer

Explanation: Laser printers are commonly preferred for sharp, high-quality text printing.

Q34. HDD stands for?

A) High Density Disk

B) Hard Disk Drive

C) Hybrid Data Drive

D) High Definition Drive

Answer: B) Hard Disk Drive

Explanation: Magnetic secondary storage device.

Q35. SSD stands for?

A) Solid State Drive

B) Super Speed Drive

C) System Storage Drive

D) Secondary Storage Drive

Answer: A) Solid State Drive

Explanation: SSDs generally provide faster data access than traditional HDDs and have no moving mechanical parts.

Q36. Capacity of a standard 3.5-inch floppy disk is?

A) 720 KB

B) 1.44 MB

C) 1.2 MB

D) 2 MB

Answer: B) 1.44 MB

Explanation: Old portable magnetic storage.

Q37. Which is optical storage?

A) Hard Disk

B) RAM

C) CD-ROM

D) Floppy

Answer: C) CD-ROM

Explanation: Uses laser technology.

Q38. Which technology is used to read data from a CD-ROM?

A) Magnetic

B) Laser

C) Electrical

D) Mechanical

Answer: B) Laser

Explanation: A laser beam is used to read data stored on a CD-ROM.

Q39. USB stands for?

A) Unified Serial Bus

B) Universal Serial Bus

C) Universal System Bus

D) Universal Storage Bus

Answer: B) Universal Serial Bus

Explanation: Standard for connecting peripherals.

Q40. HDMI stands for?

A) High Definition Multimedia Interface

B) High Data Multimedia Interface

C) High Definition Media Input

D) High Density Multimedia Interface

Answer: A) High Definition Multimedia Interface

Explanation: Transmits high-definition audio and video.

Software & Operating System (20)

Q41. Which two broad categories are commonly used to classify computer software?

A) System Software and Application Software

B) Hardware and Software

C) Input and Output

D) Primary and Secondary

Answer: A) System Software and Application Software

Explanation: Software is commonly classified into System Software and Application Software.

Q42. Which of the following is system software?

A) MS Word

B) Photoshop

C) Operating System

D) Media Player

Answer: C) Operating System

Explanation: Manages hardware and software resources.

Q43. Which of the following is application software?

A) Windows

B) Linux

C) MacOS

D) MS Word

Answer: D) MS Word

Explanation: Used for word processing; needs OS to run.

Q44. Which of the following is an operating system?

A) Windows

B) MS Office

C) Google Chrome

D) Photoshop

Answer: A) Windows

Explanation: Windows is an operating system developed by Microsoft.

Q45. Which of the following is NOT an operating system?

A) Linux

B) MS Office

C) MacOS

D) Windows

Answer: B) MS Office

Explanation: MS Office is application software.

Q46. What does GUI stand for?

A) General User Interface

B) Global User Integration

C) Graphical User Interface

D) Graphical Utility Interface

Answer: C) Graphical User Interface

Explanation: Uses icons, windows and menus.

Q47. Which is an open-source operating system?

A) Windows 11

B) MacOS

C) MS DOS

D) Linux

Answer: D) Linux

Explanation: Linux is an open-source operating system whose source code can be studied, modified and distributed under its licenses.

Q48. Who developed the Windows operating system?

A) Microsoft

B) Apple

C) Google

D) IBM

Answer: A) Microsoft

Explanation: First Windows released in 1985.

Q49. BIOS stands for?

A) Basic Input Output System

B) Binary Input Output System

C) Basic Integrated Operating System

D) Basic Internal Output System

Answer: A) Basic Input Output System

Explanation: Initializes hardware during booting.

Q50. What does a compiler do?

A) Translates source code into machine code or intermediate code before execution

B) Converts assembly to high-level

C) Edits text files

D) Manages memory only

Answer: A) Translates source code into machine code or intermediate code before execution

Explanation: A compiler translates source code into another form, such as machine code or intermediate/object code, before the program is executed.

Q51. How does an interpreter work?

A) Translates line by line

B) Translates whole program at once

C) Only manages files

D) Only displays output

Answer: A) Translates line by line

Explanation: An interpreter traditionally executes or translates source code one statement at a time.

Q52. WinZip is an example of?

A) Operating System

B) Utility Software

C) Language Translator

D) Application Software only

Answer: B) Utility Software

Explanation: Compresses files to save space.

Q53. Language translators are?

A) Compiler, Interpreter, Assembler

B) Word, Excel, PowerPoint

C) Windows, Linux

D) Antivirus, Firewall

Answer: A) Compiler, Interpreter, Assembler

Explanation: Convert programming languages to machine code.

Q54. Which is a low-level language?

A) Python

B) Assembly Language

C) Java

D) C++

Answer: B) Assembly Language

Explanation: Close to machine code, uses mnemonics.

Q55. Which is a high-level language?

A) Machine Language

B) Assembly

C) Python

D) Binary

Answer: C) Python

Explanation: Easy for humans, needs translator.

Q56. Shortcut to copy text in Windows?

A) Ctrl + C

B) Ctrl + X

C) Ctrl + V

D) Ctrl + Z

Answer: A) Ctrl + C

Explanation: Copies selected text to clipboard.

Q57. Shortcut to paste?

A) Ctrl + X

B) Ctrl + C

C) Ctrl + V

D) Ctrl + Z

Answer: C) Ctrl + V

Explanation: Pastes from clipboard.

Q58. Shortcut to cut?

A) Ctrl + C

B) Ctrl + X

C) Ctrl + V

D) Ctrl + S

Answer: B) Ctrl + X

Explanation: Cuts and moves text.

Q59. Shortcut to undo?

A) Ctrl + Y

B) Ctrl + S

C) Ctrl + P

D) Ctrl + Z

Answer: D) Ctrl + Z

Explanation: Reverses last action.

Q60. Shortcut to save a file?

A) Ctrl + S

B) Ctrl + O

C) Ctrl + N

D) Ctrl + P

Answer: A) Ctrl + S

Explanation: Saves the current document.

MS Office (15)

Q61. MS Word is used for?

A) Word processing

B) Calculations

C) Presentations

D) Database

Answer: A) Word processing

Explanation: Creates and edits text documents.

Q62. Shortcut to make text bold in MS Word?

A) Ctrl + I

B) Ctrl + B

C) Ctrl + U

D) Ctrl + P

Answer: B) Ctrl + B

Explanation: Makes selected text bold.

Q63. Shortcut for italic?

A) Ctrl + B

B) Ctrl + U

C) Ctrl + I

D) Ctrl + J

Answer: C) Ctrl + I

Explanation: Makes text slanted.

Q64. Shortcut for underline?

A) Ctrl + U

B) Ctrl + B

C) Ctrl + I

D) Ctrl + L

Answer: A) Ctrl + U

Explanation: Underlines selected text.

Q65. MS Excel is used for?

A) Word processing

B) Spreadsheet and calculations

C) Presentations

D) Browsing

Answer: B) Spreadsheet and calculations

Explanation: Works with rows, columns and formulas.

Q66. MS PowerPoint is used for?

A) Database

B) Spreadsheet

C) Presentation with slides

D) Programming

Answer: C) Presentation with slides

Explanation: Creates slide shows with text, images and animations.

Q67. Which font was the default in Microsoft Word during the period when Calibri was the standard default font?

A) Times New Roman

B) Arial

C) Calibri

D) Aptos

Answer: C) Calibri

Explanation: Calibri was the default from Word 2007 until it was replaced by Aptos as the default in Microsoft 365 in 2023. Aptos is now the current default.

Q68. A single page in PowerPoint is called?

A) Sheet

B) Slide

C) Document

D) Page

Answer: B) Slide

Explanation: Presentation is made of multiple slides.

Q69. In MS Excel, a file is called?

A) Document

B) Workbook

C) Slide

D) Database

Answer: B) Workbook

Explanation: Workbook contains worksheets.

Q70. Intersection of a row and column in Excel is called?

A) Table

B) Box

C) Cell

D) Field

Answer: C) Cell

Explanation: Each cell has an address like A1.

Q71. Which symbol is normally used to begin a formula in Excel?

A) = (equal sign)

B) + (plus)

C) * (asterisk)

D) # (hash)

Answer: A) = (equal sign)

Explanation: Excel recognizes formulas starting with =.

Q72. Which function is used to add numbers in Excel?

A) AVERAGE

B) SUM

C) MAX

D) COUNT

Answer: B) SUM

Explanation: SUM(A1:A10) adds range.

Q73. Extension of MS Word file is?

A) .xlsx

B) .pptx

C) .docx

D) .txt

Answer: C) .docx

Explanation: Modern Word format since 2007.

Q74. Extension of MS Excel file is?

A) .docx

B) .xlsx

C) .pptx

D) .accdb

Answer: B) .xlsx

Explanation: Excel workbook format.

Q75. Extension of PowerPoint file is?

A) .docx

B) .xlsx

C) .jpeg

D) .pptx

Answer: D) .pptx

Explanation: PowerPoint presentation format.

Networking & Internet (15)

Q76. LAN stands for?

A) Large Area Network

B) Local Area Network

C) Long Area Network

D) Logical Area Network

Answer: B) Local Area Network

Explanation: Covers a small area like office or building.

Q77. WAN stands for?

A) Wide Area Network

B) Wireless Area Network

C) World Area Network

D) Web Area Network

Answer: A) Wide Area Network

Explanation: Covers large geographical area, e.g., Internet.

Q78. MAN stands for?

A) Mass Area Network

B) Main Area Network

C) Metropolitan Area Network

D) Mobile Area Network

Answer: C) Metropolitan Area Network

Explanation: Covers a city, e.g., cable TV network.

Q79. IP stands for?

A) Internet Protocol

B) Internet Program

C) Internal Process

D) Information Protocol

Answer: A) Internet Protocol

Explanation: Rules for addressing and routing data.

Q80. URL stands for?

A) Uniform Resource Locator

B) Universal Routing Link

C) Uniform Routing Locator

D) Unified Resource Link

Answer: A) Uniform Resource Locator

Explanation: Address of a resource on the Internet.

Q81. HTTP stands for?

A) Hyper Text Transfer Protocol

B) High Text Transfer Protocol

C) Hyper Tool Transfer Protocol

D) Hyper Text Transmission Protocol

Answer: A) Hyper Text Transfer Protocol

Explanation: Protocol for web communication.

Q82. HTTPS is more secure than HTTP because it uses?

A) FTP

B) SMTP

C) TLS encryption

D) POP3

Answer: C) TLS encryption

Explanation: HTTPS uses TLS to encrypt communication between the browser and web server.

Q83. HTML stands for?

A) High Text Markup Language

B) Hyper Text Markup Language

C) Hyper Tool Markup Language

D) Hyper Text Management Language

Answer: B) Hyper Text Markup Language

Explanation: Used to create web pages.

Q84. WWW stands for?

A) World Wide Web

B) World Web Wide

C) Wide World Web

D) Web World Wide

Answer: A) World Wide Web

Explanation: System of linked hypertext documents via Internet.

Q85. Who is commonly referred to as one of the “Fathers of the Internet”?

A) Tim Berners-Lee

B) Vint Cerf

C) Charles Babbage

D) Dennis Ritchie

Answer: B) Vint Cerf

Explanation: Co-designed TCP/IP protocols.

Q86. What is the function of a modem?

A) Convert digital signals to analog and vice versa

B) Only store data

C) Only print documents

D) Only display output

Answer: A) Convert digital signals to analog and vice versa

Explanation: A modem modulates and demodulates signals to enable communication between digital devices and communication networks.

Q87. Which device connects different networks?

A) Switch

B) Hub

C) Router

D) Repeater

Answer: C) Router

Explanation: Routes data packets between networks.

Q88. Which device connects multiple computers within the same LAN?

A) Switch

B) Modem

C) Router

D) Printer

Answer: A) Switch

Explanation: A switch connects devices within a LAN and forwards data to the appropriate device.

Q89. What does E-mail stand for?

A) Electronic Mail

B) Electric Mail

C) Express Mail

D) Emergency Mail

Answer: A) Electronic Mail

Explanation: E-mail is used to send messages electronically over a network.

Q90. What is the main introductory page of a website commonly called?

A) Home Page

B) Index Page

C) Web Page

D) Title Page

Answer: A) Home Page

Explanation: Main entry point of a website.

Security & Abbreviations (10)

Q91. What is a computer virus?

A) Hardware

B) A type of malicious software that can attach to files and spread when executed

C) System software

D) Programming language

Answer: B) A type of malicious software that can attach to files and spread when executed

Explanation: A virus can damage data and spread to other files when the infected file is opened or executed.

Q92. What does antivirus software do?

A) Creates viruses

B) Detects and removes viruses and malware

C) Increases RAM

D) Cleans hardware

Answer: B) Detects and removes viruses and malware

Explanation: Scans files and blocks threats.

Q93. What is the function of a firewall?

A) Enhance display

B) Increase storage

C) Block unauthorized network access

D) Manage files

Answer: C) Block unauthorized network access

Explanation: Filters incoming and outgoing traffic.

Q94. What is phishing?

A) A type of printer

B) A programming language

C) An operating system

D) Cyber-attack to steal passwords and sensitive data

Answer: D) Cyber-attack to steal passwords and sensitive data

Explanation: Fake emails/websites trick users.

Q95. What is spam in email?

A) Important mail

B) Unwanted bulk messages

C) Encrypted mail

D) Draft mail

Answer: B) Unwanted bulk messages

Explanation: Unsolicited junk emails, often advertisements.

Q96. PDF stands for?

A) Portable Document Format

B) Printable Document Format

C) Public Document Format

D) Private Data Format

Answer: A) Portable Document Format

Explanation: Used to present documents independent of software/hardware.

Q97. DBMS stands for?

A) Data Backup Management System

B) Database Management System

C) Digital Base Management System

D) Data Base Mapping System

Answer: B) Database Management System

Explanation: Software like MySQL, Oracle manages databases.

Q98. What is a database?

A) Collection of hardware

B) Organized collection of data

C) Programming language

D) Network device

Answer: B) Organized collection of data

Explanation: A database allows data to be stored, accessed, managed and updated efficiently.

Q99. AI stands for?

A) Automated Input

B) Artificial Intelligence

C) Artificial Internet

D) Auto Information

Answer: B) Artificial Intelligence

Explanation: Machines simulating human intelligence.

Q100. What is cloud computing?

A) Delivery of computing services over the Internet

B) Manual calculation method

C) Local storage only

D) Hardware manufacturing

Answer: A) Delivery of computing services over the Internet

Explanation: Includes storage, servers, databases and software.

How to Use These 100 MCQs

Do 20 MCQs at a time — read the explanation, don’t just memorize the tick.
Flag weak topics (e.g., Networking, MS Office shortcuts) and revise from a standard book.
Re-attempt after 3 days — spaced revision works best for Computer.

Related Computer Preparation

Frequently Asked Questions

Are these 100 Computer MCQs repeated from your old posts?

No. All 100 are freshly written for this set and checked against our GHQ, ETEA and NCCIA sets — no question is repeated verbatim.

Which exams benefit from these MCQs?

PPSC, FPSC, NTS, OTS, PMS, ETEA, GHQ LDC, NCCIA and all One Paper exams with a Computer portion.

How should I revise for best retention?

Do small batches with explanations, flag wrong answers, and revise weak batches after 3 days — not all 100 at once.

Last reviewed: 30 September 2026 by SirNadir.com editorial team. This set covers commonly tested computer topics with original explanations prepared for this post. Found a correction? Let us know in the comments so we can review and update it.