{390+} Computer GK Questions Latest 2026 | PDF Learning Kit
Computer gk question is one of the most important topics for building strong basic computer knowledge, and that is why I wanted to bring everything together for you in one helpful guide. In this article, you will find computer GK in Hindi, English, Bengali, MCQs, question papers, and even PDF versions, all arranged in a clean and easy-to-read structure. These sections are designed to support students, exam aspirants, and anyone who wants to learn computers from the basics.
Learning computers becomes simple when things are explained clearly, and that is the purpose of this complete article. You will see short answers, direct explanations, and well-organized formats that make your study easy. Before you move ahead, get ready to explore a full set of useful and exam-ready computer GK questions that help you learn faster and revise better.
Computer GK Question

What is a computer?
A computer is an electronic device that processes data and performs calculations automatically.
Who is known as the father of computers?
Charles Babbage is considered the father of computers for designing the first mechanical computer.
What is hardware in a computer?
Hardware refers to the physical components of a computer like CPU, monitor, and keyboard.
What is software?
Software is a set of programs and instructions that tell the computer how to perform tasks.
What is an operating system?
An operating system manages computer hardware and software resources and provides services for programs.
What is the function of RAM?
RAM temporarily stores data for running programs to help the computer work faster.
What is ROM?
ROM is a read-only memory used to store permanent data in a computer.
What is a CPU?
CPU, or Central Processing Unit, executes instructions and processes data in a computer.
What is a motherboard?
The motherboard connects all computer components and allows communication between them.
What is a hard disk?
A hard disk is a storage device used to save data permanently.
What is a network?
A network connects two or more computers to share data and resources.
What is the internet?
The internet is a global network that allows computers to communicate and share information.
What is a web browser?
A web browser is software used to access websites on the internet.
What is a computer virus?
A virus is a malicious program that can damage files or slow down a computer.
What is a firewall?
A firewall protects a computer from unauthorized access and online threats.
What is cloud computing?
Cloud computing allows users to store and access data over the internet instead of local storage.
What is an IP address?
An IP address is a unique identifier for a device on a network.
What is a URL?
A URL is the address used to access websites on the internet.
What is a database?
A database stores organized data that can be easily accessed and managed.
What is artificial intelligence?
Artificial Intelligence enables computers to perform tasks that require human-like intelligence.
Computer GK Question in Hindi

| प्रश्न | उत्तर |
|---|---|
| कंप्यूटर क्या है? | कंप्यूटर एक इलेक्ट्रॉनिक उपकरण है जो डेटा को प्रोसेस करता है। |
| हार्डवेयर क्या होता है? | हार्डवेयर कंप्यूटर के भौतिक घटक होते हैं। |
| सॉफ्टवेयर क्या है? | सॉफ्टवेयर कंप्यूटर को कार्य करने के लिए निर्देश देता है। |
| CPU क्या है? | CPU कंप्यूटर का केंद्रीय प्रोसेसिंग यूनिट है। |
| RAM का क्या कार्य है? | RAM अस्थायी रूप से डेटा स्टोर करती है जिससे कंप्यूटर तेज चलता है। |
| ROM क्या है? | ROM स्थायी डेटा को स्टोर करता है। |
| मदरबोर्ड क्या है? | मदरबोर्ड कंप्यूटर के सभी घटकों को जोड़ता है। |
| हार्ड डिस्क क्या है? | हार्ड डिस्क डेटा को स्थायी रूप से स्टोर करने के लिए उपयोग होती है। |
| नेटवर्क क्या है? | नेटवर्क कंप्यूटरों को जोड़ता है ताकि डेटा साझा किया जा सके। |
| इंटरनेट क्या है? | इंटरनेट एक ग्लोबल नेटवर्क है जो कंप्यूटरों को जोड़ता है। |
| वेब ब्राउज़र क्या है? | वेब ब्राउज़र वेबसाइटों को एक्सेस करने के लिए सॉफ्टवेयर है। |
| कंप्यूटर वायरस क्या है? | वायरस एक हानिकारक प्रोग्राम है जो डेटा को नुकसान पहुंचा सकता है। |
| फायरवॉल क्या है? | फायरवॉल कंप्यूटर को अनधिकृत एक्सेस से सुरक्षा देता है। |
| क्लाउड कंप्यूटिंग क्या है? | क्लाउड कंप्यूटिंग डेटा को इंटरनेट पर स्टोर और एक्सेस करने की सुविधा देता है। |
| IP एड्रेस क्या है? | IP एड्रेस नेटवर्क पर डिवाइस की पहचान करता है। |
Computer GK Question Answer
Q1: What is a modem?
A modem is a device that converts digital data into signals for transmission over communication lines.
Q2: What is a router?
A router forwards data packets between computer networks efficiently.
Q3: What is an algorithm?
An algorithm is a step-by-step procedure for solving a problem or performing a task.
Q4: What is a spreadsheet?
A spreadsheet is software used to organize, calculate, and analyze data in tabular form.
Q5: What is a browser cache?
A browser cache stores website data temporarily to speed up loading.
Q6: What is encryption?
Encryption converts data into a secure format to prevent unauthorized access.
Q7: What is a server?
A server is a computer that provides data and services to other computers on a network.
Q8: What is a pixel?
A pixel is the smallest unit of a digital image or display.
Q9: What is malware?
Malware is software designed to disrupt, damage, or gain unauthorized access to a computer.
Q10: What is a firewall rule?
A firewall rule defines which network traffic is allowed or blocked.
Q11: What is a keyboard shortcut?
A keyboard shortcut is a combination of keys that performs a specific task quickly.
Q12: What is VoIP?
VoIP (Voice over Internet Protocol) allows voice communication over the internet.
Q13: What is cloud storage?
Cloud storage is an online service that stores files remotely for access from anywhere.
Computer GK Question in English

- What is a bit in computer terminology?
A bit is the smallest unit of data in a computer, representing 0 or 1. - What is a byte?
A byte consists of 8 bits and is used to measure data size. - What is secondary storage?
Secondary storage refers to devices like SSDs and HDDs that store data permanently. - What is a GPU?
A GPU (Graphics Processing Unit) is specialized for rendering images and videos. - What is BIOS?
BIOS (Basic Input/Output System) is firmware that initializes computer hardware during startup. - What is a compiler?
A compiler converts programming code into machine-readable language. - What is a debugger?
A debugger is a tool used to identify and fix errors in software programs. - What is an IP protocol?
IP (Internet Protocol) defines rules for addressing and sending data across networks. - What is a proxy server?
A proxy server acts as an intermediary between a user and the internet for security and caching. - What is a digital signature?
A digital signature is an encrypted code used to verify the authenticity of digital data. - What is machine learning?
Machine learning allows computers to learn from data and improve performance without explicit programming. - What is a spreadsheet formula?
A spreadsheet formula performs calculations on data in cells automatically. - What is cloud backup?
Cloud backup saves data online to protect against hardware failure or data loss. - What is a CAPTCHA?
CAPTCHA is a test used to distinguish between humans and automated bots online. - What is open-source software?
Open-source software is freely available for anyone to use, modify, and distribute. - What is a wireless adapter?
A wireless adapter allows a computer to connect to Wi-Fi networks. - What is a kernel?
The kernel is the core part of an operating system that manages system resources. - What is a VPN?
A VPN (Virtual Private Network) creates a secure, encrypted connection over the internet. - What is a touchscreen?
A touchscreen is an input device that allows interaction directly via touch. - What is system software?
System software helps run and maintain the computer hardware and application software.
Computer GK Question in Hindi PDF
- क्लाउड कंप्यूटिंग में डेटा कहाँ स्टोर होता है?
उत्तर: डेटा इंटरनेट पर रिमोट सर्वर में स्टोर होता है। - वायरलेस नेटवर्क क्या होता है?
उत्तर: वायरलेस नेटवर्क बिना तारों के डिवाइसों को जोड़ता है। - मोबाइल OS के उदाहरण क्या हैं?
उत्तर: एंड्रॉइड और iOS मोबाइल ऑपरेटिंग सिस्टम के उदाहरण हैं। - फर्मवेयर क्या होता है?
उत्तर: फर्मवेयर हार्डवेयर में एम्बेडेड सॉफ्टवेयर होता है। - डेटा एनालिटिक्स क्या है?
उत्तर: डेटा एनालिटिक्स डेटा को समझने और निर्णय लेने में मदद करता है। - कंप्यूटर में बिट और बाइट में क्या अंतर है?
उत्तर: बिट डेटा का सबसे छोटा यूनिट है, बाइट 8 बिट्स का समूह है। - ओपन सोर्स सॉफ्टवेयर का क्या अर्थ है?
उत्तर: ऐसा सॉफ्टवेयर जिसे कोई भी इस्तेमाल और बदल सकता है। - VPN का क्या उपयोग है?
उत्तर: VPN इंटरनेट पर सुरक्षित और एन्क्रिप्टेड कनेक्शन प्रदान करता है। - CAPTCHA का क्या काम है?
उत्तर: CAPTCHA यह सुनिश्चित करता है कि उपयोगकर्ता इंसान है, बॉट नहीं। - GPU का क्या काम है?
उत्तर: GPU ग्राफिक्स और वीडियो रेंडर करने के लिए जिम्मेदार होता है। - सिस्टम सॉफ्टवेयर क्या है?
उत्तर: सिस्टम सॉफ्टवेयर कंप्यूटर हार्डवेयर और एप्लिकेशन को चलाने में मदद करता है। - डिजिटल सिग्नेचर क्या है?
उत्तर: डिजिटल सिग्नेचर डेटा की प्रामाणिकता और सुरक्षा सुनिश्चित करता है। - राउटर और स्विच में अंतर क्या है?
उत्तर: राउटर नेटवर्कों को जोड़ता है, स्विच डिवाइसों को एक नेटवर्क में जोड़ता है। - मल्टीटास्किंग क्या है?
उत्तर: मल्टीटास्किंग कंप्यूटर को एक साथ कई कार्य करने की अनुमति देता है। - इंटरनेट प्रोटोकॉल (IP) क्या है?
उत्तर: IP डेटा को नेटवर्क पर भेजने और डिवाइस की पहचान करने के नियम हैं।
What does CPU stand for? – Central Processing Unit
Computer GK Questions Pdf
What is the full form of RAM? – Random Access Memory
What is the primary function of a computer? – To process data and perform tasks
What does HTML stand for? – HyperText Markup Language
Who is known as the father of computers? – Charles Babbage
What does BIOS stand for? – Basic Input Output System
What is the full form of URL? – Uniform Resource Locator
What is an IP address? – A unique address identifying a device on a network
What is the function of a modem? – To connect computers to the internet
What is software? – Programs and applications that run on a computer
What is the full form of GUI? – Graphical User Interface
What does DNS stand for? – Domain Name System
What is an operating system? – Software that manages computer hardware and software resources
What is a browser? – Software used to access the internet
What does VPN stand for? – Virtual Private Network
What is malware? – Software designed to harm a computer system
Who invented the World Wide Web? – Tim Berners-Lee
What is cloud computing? – Storing and accessing data over the internet
What is a firewall? – Security system to protect a network from unauthorized access
What does SQL stand for? – Structured Query Language
Computer GK Question Paper

Section A: Multiple Choice Questions (MCQs)/
1. What is the primary function of BIOS?
A) Run antivirus
B) Boot the system
C) Increase internet speed
D) Control display
Answer: B
2. Which port is commonly used to connect a printer?
A) USB
B) HDMI
C) VGA
D) PS/2
Answer: A
3. What does the Control Unit (CU) do in a CPU?
A) Stores data
B) Directs all operations
C) Connects to the internet
D) Controls graphics
Answer: B
4. Phishing is related to—
A) Hardware failure
B) Data theft techniques
C) File compression
D) Software installation
Answer: B
5. Which of the following is volatile memory?
A) ROM
B) SSD
C) RAM
D) CD-ROM
Answer: C
- Section B: Short Answer Questions
6. What does a file extension represent?
It identifies the file type and indicates which software can open the file.
7. What is the difference between LAN and WAN?
LAN covers a small area, while WAN covers a large geographical region.
8. What is the function of a firewall?
It protects a system or network from unauthorized access.
9. Give any two examples of operating systems.
Windows and Linux.
10. What is the purpose of a QR code?
It stores information that can be quickly scanned and read digitally.
- Section C: Very Short Questions
11. What is the full form of Modem?
Modulator–Demodulator.
12. CPU is known as the ______ of the computer.
Brain.
13. Give one example of spreadsheet software.
Microsoft Excel.
14. What is HTML used for?
Creating webpages.
15. Give one example of an input device.
Keyboard.
- Section D: Fill in the Blanks
16. The address of a website on the internet is called a ______.
URL.
17. Software used to remove computer viruses is called ______.
Antivirus.
18. Permanent data storage in a computer is done using ______.
Hard Disk / SSD.
- Section E: True / False
19. SSD is faster than HDD.
True.
20. Bluetooth is a wired communication technology.
False.
- Computer GK Questions MCQ
1. Which part of the computer connects all internal components?
A) UPS
B) Motherboard
C) Modem
D) Printer
Answer: B
2. Which unit stores data even after power is turned off?
A) RAM
B) Cache
C) ROM
D) CPU
Answer: C
3. Which of the following is an example of operating system?
A) Chrome
B) Windows
C) Photoshop
D) VLC
Answer: B
4. Which device is used for biometric authentication?
A) Barcode Reader
B) Fingerprint Scanner
C) Joystick
D) Laser Printer
Answer: B
5. The smallest unit of data in a computer is—
A) Byte
B) Bit
C) Kilobyte
D) Word
Answer: B
6. Which key combination is used to paste text?
A) Ctrl + A
B) Ctrl + P
C) Ctrl + V
D) Ctrl + D
Answer: C
7. Which type of memory is fastest?
A) RAM
B) Cache Memory
C) Hard Disk
D) DVD
Answer: B
8. What is the full form of URL?
A) Universal Resource Link
B) Uniform Resource Locator
C) Unique Resource Layer
D) Unified Resource Loader
Answer: B
9. Which device is used to project visuals on a screen?
A) Modem
B) Speaker
C) Projector
D) Router
Answer: C
10. What is the main purpose of a router?
A) Store data
B) Print documents
C) Direct network traffic
D) Scan fingerprints
Answer: C
11. Which of these is called volatile memory?
A) ROM
B) SSD
C) RAM
D) Blu-ray Disc
Answer: C
12. What does SSD stand for?
A) Solid State Drive
B) Secure Storage Disk
C) System Speed Device
D) Super Storage Drive
Answer: A
13. Which port is used for audio input?
A) HDMI
B) USB
C) 3.5mm Jack
D) VGA
Answer: C
14. Which software allows browsing websites?
A) Excel
B) PowerPoint
C) Word
D) Web Browser
Answer: D
15. What is the function of a compiler?
A) Stores data
B) Converts code to machine language
C) Connects to internet
D) Displays graphics
Answer: B
16. Which of the following is not an input device?
A) Keyboard
B) Mouse
C) Scanner
D) Monitor
Answer: D
17. Which type of file is used to store videos?
A) .mp3
B) .mp4
C) .txt
D) .xls
Answer: B
18. What is the shortcut for saving a document?
A) Ctrl + S
B) Ctrl + B
C) Ctrl + U
D) Ctrl + F
Answer: A
19. Which technology enables wireless communication between devices?
A) Bluetooth
B) HDMI
C) USB
D) Ethernet
Answer: A
20. CAPTCHA is used to distinguish—
A) RAM and ROM
B) Human and Bot
C) LAN and WAN
D) CPU and GPU
Answer: B
21. Which type of storage is used in pen drives?
A) Optical
B) Flash Memory
C) Magnetic
D) Hybrid
Answer: B
22. Which computer language is used for AI applications?
A) Python
B) BASIC
C) COBOL
D) Pascal
Answer: A
23. Which component displays graphical output?
A) Monitor
B) CPU
C) Mouse
D) Keyboard
Answer: A
24. What is the full form of ISP?
A) Internet Secure Platform
B) Internet Service Provider
C) Internal Server Point
D) Integrated System Program
Answer: B
25. Which device converts sound into digital form?
A) Speaker
B) Microphone
C) Webcam
D) Joystick
Answer: B
26. Which of these is an example of malware?
A) Antivirus
B) Spreadsheet
C) Worm
D) Router
Answer: C
27. What is the main function of the OS?
A) Build hardware
B) Manage computer resources
C) Repair circuits
D) Increase electricity
Answer: B
28. Which storage device has the highest speed?
A) HDD
B) SSD
C) DVD
D) Tape Drive
Answer: B
29. Which command is used to redo an action?
A) Ctrl + Z
B) Ctrl + Y
C) Ctrl + Q
D) Ctrl + R
Answer: B
30. Which unit measures display clarity?
A) Hz
B) DPI
C) Volt
D) Amp
Answer: B
31. What is the full form of AI?
A) Automated Internet
B) Artificial Intelligence
C) Advanced Interface
D) Applied Integration
Answer: B
32. Binary system is based on—
A) 4 digits
B) 2 digits
C) 6 digits
D) 10 digits
Answer: B
Computer GK Questions in Bengali

1. কম্পিউটারের জনক কে?
চার্লস ব্যাবেজ।
2. কম্পিউটার ডেটা কীভাবে প্রক্রিয়া করে?
ইনপুট ডেটা নিয়ে CPU এর মাধ্যমে প্রক্রিয়া করে আউটপুট তৈরি করে।
3. CPU কেন কম্পিউটারের মস্তিষ্ক বলা হয়?
কারণ এটি সব গণনা ও নির্দেশনা সম্পাদন করে।
4. RAM এবং ROM এর প্রধান পার্থক্য কী?
RAM অস্থায়ী মেমোরি, ROM স্থায়ী মেমোরি।
5. হার্ড ডিস্ক কী কাজে ব্যবহৃত হয়?
ডেটা স্থায়ীভাবে সংরক্ষণ করতে ব্যবহৃত হয়।
6. প্রথম ইলেকট্রনিক কম্পিউটার কোনটি ছিল?
ENIAC।
7. অপারেটিং সিস্টেম কী?
এটি কম্পিউটারের হার্ডওয়্যার ও সফটওয়্যার পরিচালনা করে।
8. সফটওয়্যার ও হার্ডওয়ারের মধ্যে পার্থক্য কী?
হার্ডওয়্যার হলো যন্ত্রাংশ, সফটওয়্যার হলো প্রোগ্রাম।
9. ইনপুট ডিভাইস বলতে কী বোঝায়?
যে ডিভাইস দিয়ে ডেটা কম্পিউটারে প্রবেশ করানো হয়।
10. আউটপুট ডিভাইস কী?
যে ডিভাইস কম্পিউটার থেকে ফলাফল প্রদর্শন করে।
11. ইন্টারনেট কীভাবে কাজ করে?
বিশ্বব্যাপী সংযুক্ত নেটওয়ার্কের মাধ্যমে ডেটা আদান–প্রদান করে।
12. ব্রাউজার কী?
ওয়েবসাইট খুলতে ব্যবহৃত সফটওয়্যার।
13. কম্পিউটার নেটওয়ার্ক কী?
একাধিক ডিভাইসের পারস্পরিক সংযোগ।
14. LAN ও WAN এর মধ্যে পার্থক্য কী?
LAN ছোট এলাকা, WAN বড় এলাকা জুড়ে ব্যবহৃত হয়।
15. কম্পিউটার ভাইরাস কী?
ক্ষতিকর সফটওয়্যার যা সিস্টেমের ক্ষতি করতে পারে।
16. অ্যান্টিভাইরাস সফটওয়্যার কেন ব্যবহার করা হয়?
ভাইরাস শনাক্ত ও অপসারণের জন্য।
17. ক্লাউড স্টোরেজ কী?
অনলাইনে ডেটা সংরক্ষণের ব্যবস্থা।
18. ইমেইল কীভাবে কাজ করে?
ইন্টারনেট সার্ভারের মাধ্যমে বার্তা পাঠানো–নেওয়া।
19. প্রোগ্রামিং ভাষা কী?
সফটওয়্যার তৈরি করার ভাষা।
20. অ্যালগরিদম কী?
সমস্যা সমাধানের ধাপভিত্তিক পদ্ধতি।
21. ডেটা ইউনিট কী কী?
বিট, বাইট, KB, MB, GB ইত্যাদি।
22. বিট ও বাইটের পার্থক্য কী?
৮ বিটে ১ বাইট হয়।
23. IP Address কী?
প্রতিটি নেটওয়ার্ক ডিভাইসের অনন্য ঠিকানা।
24. সার্ভার কী?
ডেটা বা সেবা সরবরাহকারী বিশেষ কম্পিউটার।
25. ফায়ারওয়াল কী?
সিস্টেমকে অননুমোদিত প্রবেশ থেকে রক্ষা করে।
26. এনক্রিপশন কী?
ডেটাকে নিরাপদ কোডে রূপান্তর করার প্রক্রিয়া।
27. ডাটাবেস কী?
সংগঠিত ডেটার সংরক্ষণশালা।
28. SSD এবং HDD এর মধ্যে পার্থক্য কী?
SSD দ্রুত, HDD তুলনামূলক ধীর কিন্তু সস্তা।
29. Cache Memory কী?
দ্রুত অ্যাক্সেসের জন্য অস্থায়ী ডেটা সংরক্ষণ স্থান।
30. মাদারবোর্ডের কাজ কী?
সব কম্পোনেন্টকে সংযুক্ত ও নিয়ন্ত্রণ করা।
31. BIOS কী?
কম্পিউটার চালুর সময় প্রাথমিক পরীক্ষা ও স্টার্টআপ পরিচালনা করে।
32. Bluetooth কীভাবে কাজ করে?
স্বল্প দূরত্বে বেতার সংকেতের মাধ্যমে ডেটা ট্রান্সফার করে।
33. USB পোর্ট কী কাজে লাগে?
ডিভাইস সংযোগ ও ডেটা ট্রান্সফারের জন্য ব্যবহৃত হয়।
Conclusion:
In conclusion, I hope this full collection of computer GK questions covering Hindi, English, Bengali, MCQs, PDFs, and question papers helped you understand every topic with clarity. Each section was written to give you real value and simple explanations that support your exam preparation.
If this guide helped you, feel free to read more topics, download the PDFs, or continue practicing from the other question sets on my website. Keep learning with consistency, and you will see your confidence grow in every test, quiz, or competitive exam you prepare for.
FAQs:
What is the basic of computer GK?
Computer GK includes knowledge about hardware, software, types of computers, input/output devices, and basic functions of a computer.
What are the top 100 GK questions?
The top 100 GK questions cover general knowledge topics including computers, history, science, geography, and current affairs.
What is MCQ in computer?
MCQ stands for Multiple Choice Questions, a type of question with several options where only one is correct.
Is 20 questions a quiz?
Yes, a set of 20 questions is commonly used as a short quiz for practice or assessment.
Who is first in world GK?
This refers to the first person or fact in a GK topic; for example, first computer scientist or inventor in history depending on the subject.
What are the 10 hardest questions?
These are challenging GK questions designed to test advanced knowledge in science, history, and current affairs.
Is computer memory RAM or ROM?
Computer memory includes both RAM (temporary, volatile) and ROM (permanent, non-volatile) for storage and operation.
What is computer 10 points?
Ten basic points about computers include definition, types, input/output devices, memory, software, hardware, uses, advantages, and limitations.
