📘 Computer – 100 Most Important Questions (with Answers)

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 🖥️ Basics of Computer

  1. Computer ka father kisko kaha jata hai? → Charles Babbage

  2. First Computer ka naam kya tha? → ENIAC

  3. IC (Integrated Circuit) kis generation ke computer me use hua? → Third Generation

  4. Microprocessor kis generation me invent hua? → Fourth Generation

  5. Supercomputer ka father kisko kaha jata hai? → Seymour Cray

  6. India ka first supercomputer ka naam? → PARAM 8000

  7. First mechanical computer ka naam? → Analytical Engine

  8. First Electronic Computer ka naam? → ENIAC

  9. First Microprocessor ka naam? → Intel 4004

  10. First Laptop ka naam? → Epson HX-20

💾 Memory & Storage

  1. Computer ki working memory kaunsi hoti hai? → RAM

  2. Permanent memory ko kya kehte hain? → ROM

  3. Cache memory ka use kisliye hota hai? → Fast data access ke liye

  4. Primary memory ka example? → RAM, ROM

  5. Secondary memory ka example? → Hard Disk, CD, DVD

  6. Memory measurement unit sabse chhoti? → Bit

  7. 1 Byte = ? → 8 Bits

  8. 1 KB = ? → 1024 Bytes

  9. 1 MB = ? → 1024 KB

  10. 1 GB = ? → 1024 MB

⌨️ Input / Output Devices

  1. Jo device data input karta hai? → Keyboard, Mouse, Scanner

  2. Jo device output deta hai? → Monitor, Printer, Speaker

  3. Jo device input-output dono karta hai? → Touch Screen, Modem

  4. Light pen ka use? → Graphics design me

  5. OCR ka full form? → Optical Character Recognition

  6. MICR ka full form? → Magnetic Ink Character Recognition

  7. Barcode Reader ka use? → Product identification ke liye

  8. Printer kaunsa output device hai? → Hard Copy Output

  9. Plotter ka use? → Large graphics print karne ke liye

  10. Jo device ek sath input-output karta hai? → Modem

💻 Software

  1. Software kitne type ka hota hai? → 2 (System Software & Application Software)

  2. Operating System ka example? → Windows, Linux, macOS

  3. Word Processing software ka example? → MS Word

  4. Spreadsheet software ka example? → MS Excel

  5. Presentation software ka example? → MS PowerPoint

  6. DBMS ka example? → MS Access, Oracle, MySQL

  7. Programming Language high level ka example? → C, C++, Java, Python

  8. Machine Language kis form me hoti hai? → Binary (0 & 1)

  9. Assembly Language me kya use hota hai? → Mnemonics

  10. Compiler ka use? → Source code ko machine code me convert karna

🌐 Internet & Networking

  1. Internet ka father? → Vint Cerf

  2. WWW ka inventor? → Tim Berners-Lee

  3. First Email kisne bheja? → Ray Tomlinson

  4. HTTP ka full form? → Hyper Text Transfer Protocol

  5. HTML ka full form? → Hyper Text Markup Language

  6. URL ka full form? → Uniform Resource Locator

  7. IP address kitne bit ka hota hai (IPv4)? → 32 Bit

  8. IP address kitne bit ka hota hai (IPv6)? → 128 Bit

  9. DNS ka full form? → Domain Name System

  10. LAN ka full form? → Local Area Network

🔐 Security

  1. Virus ka full form? → Vital Information Resource Under Siege

  2. Antivirus ka example? → Avast, Quick Heal, McAfee

  3. Firewall ka use? → Unauthorized access rokna

  4. Phishing kya hai? → Fraud email se data chori

  5. Malware kya hai? → Malicious Software

  6. Ransomware kya hai? → Data lock karke ransom demand karna

  7. Trojan Horse kya hai? → Malware disguised as software

  8. Worm kya hai? → Self-replicating malware

  9. Encryption ka use? → Data ko secure karne ke liye

  10. CAPTCHA ka full form? → Completely Automated Public Turing test to tell Computers and Humans Apart

📊 MS Office (Special)

  1. MS Word ka default file extension? → .docx

  2. MS Excel ka default file extension? → .xlsx

  3. MS PowerPoint ka default file extension? → .pptx

  4. Excel me formula start hota hai? → = (equal sign)

  5. Excel me sabse chhota unit? → Cell

  6. Word me spell check shortcut? → F7

  7. Copy shortcut? → Ctrl + C

  8. Paste shortcut? → Ctrl + V

  9. Cut shortcut? → Ctrl + X

  10. Save shortcut? → Ctrl + S

🖧 Networking & Devices

  1. Modem ka kaam kya hai? → Signal convert karna (Analog ↔ Digital)

  2. Router ka use? → Different networks connect karna

  3. Switch ka use? → Devices ko LAN me connect karna

  4. Hub kya hai? → Basic networking device

  5. Bluetooth kis type ka network hai? → PAN (Personal Area Network)

  6. Wi-Fi ka full form? → Wireless Fidelity

  7. ISP ka full form? → Internet Service Provider

  8. Ethernet cable ka example? → Cat5, Cat6

  9. IP address version 6 me kitne bit? → 128

  10. Domain extension example? → .com, .org, .in

🧑‍💻 Programming

  1. First programming language? → FORTRAN

  2. OOP ka full form? → Object Oriented Programming

  3. OOP language ka example? → C++, Java, Python

  4. HTML ka use? → Web page design

  5. SQL ka full form? → Structured Query Language

  6. Python kis ke liye famous hai? → AI & Data Science

  7. Java kis company ne banaya? → Sun Microsystems

  8. C language ka father? → Dennis Ritchie

  9. C++ ka father? → Bjarne Stroustrup

  10. Python ka father? → Guido van Rossum

🔑 Miscellaneous

  1. ASCII ka full form? → American Standard Code for Information Interchange

  2. Unicode kis liye use hota hai? → Universal character encoding

  3. BIOS ka full form? → Basic Input Output System

  4. PDF ka full form? → Portable Document Format

  5. JPEG ka full form? → Joint Photographic Expert Group

  6. MP3 ka full form? → Moving Picture Expert Group Layer-3

  7. GIF ka full form? → Graphics Interchange Format

  8. Cloud Computing ka example? → Google Drive, iCloud

  9. AI ka full form? → Artificial Intelligence

  10. IoT ka full form? → Internet of Things

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