Computer GK Questions
Computer GK questions with answers: 15 of them, each with a short explanation. No login, just play, score and compare with friends.
15 questionsMixed (easy → hard)~3 minNo timer
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About this Computer GK quiz
These computer GK questions cover the people, inventions and everyday facts behind the machines we use: who invented the Web and the mouse, who founded the big software companies, what common full forms mean, how networks and modems work, and how to stay safe from malware. There are 15 questions, from easy warm-ups to a few that surprise even regular users.
This computer GK quiz suits students preparing for the computer awareness part of school, SSC, banking and state exams, quiz club members, and anyone curious about the history of technology. Each question has four options and a short explanation, so a wrong answer still teaches you something - a good way to build computer general knowledge without memorising long lists.
Play it once cold, then read the computer GK question answer key below, which is easy to revise from. Try again after a few days to see how much stuck, and share your score to challenge friends.
Did you know? PARAM 8000, often called India's first supercomputer, was built by C-DAC and delivered in 1991. C-DAC had been set up a few years earlier after India was refused a supercomputer by the US, and the PARAM series has continued ever since, with machines installed at research institutes across the country.
Computer GK questions with answers
Show answers
Who invented the World Wide Web in 1989 while working at CERN?
- Vint Cerf
- Tim Berners-Lee
- Linus Torvalds
- Steve Jobs
Answer: Tim Berners-Lee. Tim Berners-Lee proposed the Web at CERN in 1989. Vint Cerf co-designed TCP/IP, the internet's underlying protocols - the Web runs on top of the internet.
What is the full form of PDF?
- Printed Document File
- Public Data Format
- Portable Data File
- Portable Document Format
Answer: Portable Document Format. PDF stands for Portable Document Format, created by Adobe so a document looks the same on any device or printer.
Microsoft was founded in 1975 by Bill Gates and which other person?
- Paul Allen
- Steve Wozniak
- Larry Page
- Gordon Moore
Answer: Paul Allen. Bill Gates and his school friend Paul Allen started Microsoft in 1975. Steve Wozniak co-founded Apple and Larry Page co-founded Google.
Which device converts digital signals into analog signals for telephone lines, and back again?
- Router
- Switch
- Modem
- Hub
Answer: Modem. Modem is short for modulator-demodulator: it modulates digital data into analog signals and demodulates them back at the other end.
What does "IP" stand for in "IP address"?
- Internal Port
- Internet Protocol
- Information Path
- Internet Provider
Answer: Internet Protocol. An Internet Protocol address is the number that identifies a device on a network so data can reach it.
Which of these is NOT a programming language?
- Python
- Java
- Ruby
- Microsoft Excel
Answer: Microsoft Excel. Excel is a spreadsheet application. Python, Java and Ruby are programming languages used to write software.
Who conceived the computer mouse at the Stanford Research Institute in the 1960s?
- Douglas Engelbart
- Charles Babbage
- Alan Turing
- Bill Gates
Answer: Douglas Engelbart. Douglas Engelbart came up with the mouse; his engineer Bill English built the first prototype, a wooden box with two wheels, in 1964. Engelbart showed it publicly in 1968.
Malware that locks or encrypts your files and demands payment to unlock them is called what?
- Spyware
- Adware
- Ransomware
- A worm
Answer: Ransomware. Ransomware holds data to ransom. Regular offline backups are the best defence, because you can restore files without paying.
Who led C-DAC's development of the PARAM supercomputers and is best known as the architect of India's supercomputing programme?
- A. P. J. Abdul Kalam
- Vijay Bhatkar
- Vikram Sarabhai
- Homi Bhabha
Answer: Vijay Bhatkar. Vijay Bhatkar was C-DAC's founding executive director. His team built PARAM 8000, often called India's first supercomputer, delivered in 1991.
In Windows, which shortcut opens the Task Manager directly?
- Ctrl + Alt + T
- Alt + F4
- Windows + D
- Ctrl + Shift + Esc
Answer: Ctrl + Shift + Esc. Ctrl + Shift + Esc opens Task Manager in one step. Alt + F4 closes the active window and Windows + D shows the desktop.
Who created the Linux kernel in 1991?
- Linus Torvalds
- Richard Stallman
- Dennis Ritchie
- Ken Thompson
Answer: Linus Torvalds. Linus Torvalds, then a student in Finland, released the Linux kernel in 1991. Dennis Ritchie and Ken Thompson created Unix, which inspired it.
Who is often called the world's first computer programmer?
- Grace Hopper
- Marie Curie
- Ada Lovelace
- Hedy Lamarr
Answer: Ada Lovelace. In 1843 Ada Lovelace published notes with a method for Babbage's Analytical Engine to calculate Bernoulli numbers - seen as the first published program.
Which Indian-born executive became CEO of Google in 2015?
- Satya Nadella
- Sundar Pichai
- Shantanu Narayen
- Arvind Krishna
Answer: Sundar Pichai. Sundar Pichai took charge of Google in 2015 and also became CEO of its parent company Alphabet in 2019. Satya Nadella leads Microsoft and Shantanu Narayen leads Adobe.
A processor's clock speed is measured in which unit?
- Bytes
- Pixels
- Decibels
- Hertz
Answer: Hertz. Clock speed is cycles per second, measured in hertz - today usually gigahertz (GHz), or billions of cycles per second.
The common "QWERTY" keyboard gets its name from what?
- The first six letters on its top letter row
- Its inventor's initials
- The company that first sold it
- A code word used in early computers
Answer: The first six letters on its top letter row. Q, W, E, R, T and Y are the first six letters on the top row. The layout dates back to typewriters of the 1870s.
Frequently asked questions
How many questions are in this computer GK quiz?
The quiz has 15 multiple-choice questions with four options each. They range from easy basics to harder history and networking facts, and take about five minutes to finish.
Can I play the computer GK quiz online for free without signing up?
Yes. It is free, needs no login, and shows your score instantly at the end. You can share the result with friends straight from the results screen.
Where can I see the answers to these computer GK questions?
Scroll to the answer key section below the quiz. It lists every question with the correct option and a short explanation, so you can revise the facts after playing.
Is this computer general knowledge quiz useful for exam preparation?
It is a good quick check for the computer awareness section of SSC, banking, railway and state exams, which often ask about inventors, full forms, shortcuts and security threats. Pair it with the computer quiz and programming quizzes on this site for wider coverage.