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By Karan Singh Bisht
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Updated on 11 Aug 2025, 13:10 IST
In today’s world, computers are a vital part of our daily lives. Many competitive exams now have a section on basic computer questions and computer general knowledge questions to test candidates’ understanding of computer systems and their uses. It’s important for candidates to know computer gk questions and computer gk questions with answers to avoid losing marks in the exam.
Having basic computer knowledge also makes tasks easier in today’s era. Whether you are preparing for computer gk questions in English, brushing up on basic computer questions, or exploring 50 computer questions with answers for practice, improving your skills in this area can be very beneficial.
Therefore, anyone looking to improve their computer skills should practice computer questions and answers regularly. You can also explore 100 computer questions and answers in English and 100 computer questions and answers pdf for comprehensive preparation. These resources include computer basic questions, computer general knowledge questions, and practice sets for exams.
To make it easier, we have compiled a 100 computer questions and answers PDF that you can download for free, helping you study anytime and anywhere.
Q: What does CPU stand for?
A: Central Processing Unit
Q: What is the main page of a website called?
A: Home page
Q: What does RAM stand for?
A: Random Access Memory
Q: What does ROM stand for?
A: Read-Only Memory
Q: What is the full form of HTTP?
A: HyperText Transfer Protocol
Q: What does URL stand for?
A: Uniform Resource Locator
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Q: What is an operating system?
A: Software that manages computer hardware and software
Q: What does WWW stand for?
A: World Wide Web
Q: What is a web browser?
A: Software to access the internet
Q: What is the brain of the computer?
A: CPU
Q: What is a computer virus?
A: Malicious software that harms computers
Q: What is the main function of a printer?
A: To produce hard copies of documents
Q: What is software?
A: Programs and operating information used by a computer
Q: What does PDF stand for?
A: Portable Document Format
Q: What is a byte?
A: A unit of digital information
Q: What is the full form of USB?
A: Universal Serial Bus
Q: What does GUI stand for?
A: Graphical User Interface
Q: What is an IP address?
A: A unique address for a device on a network
Q: What does BIOS stand for?
A: Basic Input/Output System
Q: What is a hard drive?
A: A device to store data
Q: What is the function of a mouse?
A: To point and click on items on the screen
Q: What is an email?
A: Electronic mail
Q: What does LAN stand for?
A: Local Area Network
Q: What does WAN stand for?
A: Wide Area Network
Q: What is the purpose of a firewall?
A: To protect a network from unauthorized access
Q: What is a pixel?
A: The smallest unit of a digital image
Q: What does HTML stand for?
A: HyperText Markup Language
Q: What is a modem?
A: A device that connects a computer to the internet
Q: What is the use of a spreadsheet?
A: To organize and analyze data in tabular form
Q: What is a network?
A: A group of interconnected computers
Q: What does VPN stand for?
A: Virtual Private Network
Q: What is cloud computing?
A: Storing and accessing data over the internet
Q: What is malware?
A: Malicious software designed to harm a computer
Q: What is the function of a router?
A: To direct data between networks
Q: What does AI stand for?
A: Artificial Intelligence
Q: What is an algorithm?
A: A set of steps to solve a problem
Q: What is phishing?
A: A scam to steal personal information via email
Q: What does SSD stand for?
A: Solid State Drive
Q: What is Bluetooth?
A: A technology for wireless communication
Q: What is a hyperlink?
A: A link from one webpage to another
Q: What is bandwidth?
A: The maximum data transfer rate of a network
Q: What is the full form of SMS?
A: Short Message Service
Q: What is a domain name?
A: The address of a website
Q: What does SQL stand for?
A: Structured Query Language
Q: What is an app?
A: Application software
Q: What is the full form of ISP?
A: Internet Service Provider
Q: What is encryption?
A: Converting data into a code for security
Q: What is a bot?
A: Software that performs automated tasks
Q: What does FTP stand for?
A: File Transfer Protocol
Q: What is a cookie in web terms?
A: Data stored by a website on a user’s computer
Q: What is a search engine?
A: A tool to find information on the internet
Q: What does DNS stand for?
A: Domain Name System
Q: What is e-commerce?
A: Buying and selling goods online
Q: What is spyware?
A: Software that secretly collects user information
Q: What is a blog?
A: A regularly updated website or web page
Q: What is the full form of JPEG?
A: Joint Photographic Experts Group
Q: What is the full form of GIF?
A: Graphics Interchange Format
Q: What does XML stand for?
A: eXtensible Markup Language
Q: What is a QR code?
A: Quick Response code
Q: What is the full form of API?
A: Application Programming Interface
Q: What is a cache?
A: A storage area for temporary data
Q: What does URL stand for?
A: Uniform Resource Locator
Q: What is the function of a scanner?
A: To convert physical documents into digital format
Q: What is a graphics card?
A: Hardware that renders images
Q: What does DNS stand for?
A: Domain Name System
Q: What is a database?
A: Organized collection of data
Q: What is the full form of HTTP?
A: HyperText Transfer Protocol
Q: What is VoIP?
A: Voice over Internet Protocol
Q: What is the function of a motherboard?
A: It holds and allows communication between computer components
Q: What is a chatbot?
A: Software that simulates conversation with users
Q: What is an SSD?
A: Solid State Drive
Q: What is a URL?
A: Uniform Resource Locator
Q: What is the use of Excel?
A: To create spreadsheets for data analysis
Q: What does BIOS stand for?
A: Basic Input/Output System
Q: What is an IP address?
A: A unique address for a device on a network
Q: What is a firewall?
A: Security system that controls incoming and outgoing network traffic
Q: What does PDF stand for?
A: Portable Document Format
Q: What is the function of a webcam?
A: To capture video
Q: What is phishing?
A: Fraudulent attempt to obtain sensitive information
Q: What is the full form of SQL?
A: Structured Query Language
Q: What is the full form of RAM?
A: Random Access Memory
Q: What is a botnet?
A: A network of infected computers controlled as a group
Q: What is the function of a USB port?
A: To connect peripheral devices to a computer
Q: What is the full form of ISP?
A: Internet Service Provider
Q: What is an operating system?
A: Software that manages computer hardware and software
Q: What does GUI stand for?
A: Graphical User Interface
Q: What is the function of a modem?
A: To connect a computer to the internet
Q: What is malware?
A: Malicious software designed to harm a computer
Q: What is the full form of BIOS?
A: Basic Input/Output System
Q: What is cloud storage?
A: Storing data on the internet
Q: What is the full form of IP?
A: Internet Protocol
Q: What is the main function of a printer?
A: To produce hard copies of documents
Q: What is the full form of AI?
A: Artificial Intelligence
Q: What is a QR code?
A: Quick Response code
Q: What is the full form of API?
A: Application Programming Interface
Q: What is a byte?
A: A unit of digital information
Q: What is the full form of LAN?
A: Local Area Network
Q: What is the function of a router?
A: To direct data between networks
Q: What is encryption?
A: Converting data into a code for security
Q: What is the main page of a website called?
A: Home page
Q: What is a pixel?
A: The smallest unit of a digital image
Q: What does WAN stand for?
A: Wide Area Network
Q: What is a blog?
A: A regularly updated website or web page
Q: What is cloud computing?
A: Storing and accessing data over the internet
Q: What is spyware?
A: Software that secretly collects user information
Q: What is a bot?
A: Software that performs automated tasks
Q: What is the full form of USB?
A: Universal Serial Bus
Q: What is the function of a scanner?
A: To convert physical documents into digital format
Q: What is e-commerce?
A: Buying and selling goods online
Q: What does FTP stand for?
A: File Transfer Protocol
Q: What is the full form of GIF?
A: Graphics Interchange Format
Q: What is a database?
A: Organized collection of data
Q: What is a hyperlink?
A: A link from one webpage to another
Q: What is a graphics card?
A: Hardware that renders images
Q: What does DNS stand for?
A: Domain Name System
Q: Who is known as the father of the computer?
A: Charles Babbage
Q: What does CPU stand for?
A: Central Processing Unit
Q: Which part of the computer is considered the brain?
A: CPU
Q: What does RAM stand for?
A: Random Access Memory
Q: What does ROM stand for?
A: Read-Only Memory
Q: Which is the first mechanical computer?
A: Analytical Engine
Q: What is the full form of HTML?
A: HyperText Markup Language
Q: What is the full form of HTTP?
A: HyperText Transfer Protocol
Q: Who invented the World Wide Web?
A: Tim Berners-Lee
Q: What is the main function of the ALU?
A: Perform arithmetic and logical operations
Q: What is an input device?
A: A device used to enter data into a computer (e.g., Keyboard, Mouse)
Q: Give an example of an output device.
A: Monitor, Printer
Q: What is system software?
A: Software that controls hardware and provides a platform for applications
Q: Name one example of application software.
A: Microsoft Word
Q: What is firmware?
A: Software permanently stored in hardware
Q: What type of memory is non-volatile?
A: ROM
Q: What does BIOS stand for?
A: Basic Input Output System
Q: Which storage device has no moving parts?
A: Solid State Drive (SSD)
Q: Which device is used to connect to the internet?
A: Modem
Q: What is cache memory?
A: High-speed memory for storing frequently used data
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Q: What is IP address?
A: A unique number assigned to a device connected to a network
Q: What is LAN?
A: Local Area Network
Q: What is WAN?
A: Wide Area Network
Q: What is a domain name?
A: A human-readable website address (e.g., google.com)
Q: What is DNS?
A: Domain Name System
Q: What does URL stand for?
A: Uniform Resource Locator
Q: What is cloud computing?
A: Storing and accessing data over the internet
Q: Which protocol is used to send emails?
A: SMTP (Simple Mail Transfer Protocol)
Q: Which protocol is used to receive emails?
A: POP3 or IMAP
Q: What is a firewall?
A: A security system that monitors and controls network traffic
Q: What is a programming language?
A: A set of instructions to communicate with a computer
Q: Name one high-level programming language.
A: Python
Q: What does SQL stand for?
A: Structured Query Language
Q: What is a database?
A: An organized collection of data
Q: Name one popular database management system.
A: MySQL
Q: What is open-source software?
A: Software with freely available source code
Q: Which language is mainly used for web development?
A: HTML, CSS, JavaScript
Q: What does API stand for?
A: Application Programming Interface
Q: What is debugging?
A: Finding and fixing errors in a program
Q: What is machine code?
A: Binary code that the computer’s processor understands
Q: What is cyber security?
A: Protecting systems from digital attacks
Q: What is phishing?
A: Fraudulent attempts to obtain sensitive information
Q: What is encryption?
A: Converting data into a secure format
Q: What is a virus in computing?
A: Malicious software that can damage data and systems
Q: What is artificial intelligence?
A: The simulation of human intelligence by machines
Q: What is IoT?
A: Internet of Things – interconnected smart devices
Q: What is blockchain?
A: A secure, decentralized ledger technology
Q: What is a QR code?
A: Quick Response code used for storing information
Q: What is metadata?
A: Data about data
Q: What is virtual reality?
A: A simulated 3D environment experienced using devices like VR headsets
Computer GK (General Knowledge) questions are basic to advanced questions related to computer systems, hardware, software, programming, internet, and emerging technologies. These questions are often asked in competitive exams, interviews, and quizzes to test a person’s computer knowledge.
Many competitive exams such as SSC, Banking, Railways, and state-level tests include a computer awareness section. Preparing computer GK questions helps candidates score higher, as these questions are usually straightforward and require factual knowledge.
You can find 100 computer questions and answers in English on Infinity Learn, PDFs, and educational blogs. These usually cover topics like hardware, software, networking, internet basics, and programming.
Some examples of basic computer GK questions include:
Infinity Learn educational website provide a free 100 computer questions and answers PDF for download. You can search 100 computer questions and answers PDF online and access it for offline study.