Computer Awareness questions often cover things we use or see while working with computers. Common topics include RAM and storage, operating systems, Excel shortcuts, internet terms, and basic cybersecurity. Simply remembering the correct option can make it easy to mix up answers later. That is why each question below includes a short explanation. The goal is to help you understand the concept instead of only memorizing the answer.
This set covers hardware, memory, operating systems, MS Word, Excel, PowerPoint, the internet, networking, and cybersecurity. Some questions test basic facts, while others are based on common computer use.
Computer GK MCQs for Competitive Exams
1. Which unit mainly processes and executes instructions in a computer?
A. Monitor
B. CPU
C. Keyboard
D. Printer
Answer: B. CPU
Explanation:
CPU stands for Central Processing Unit. It processes and executes instructions given to the computer.
2. Why is RAM called volatile memory?
A. Its capacity is always fixed
B. It stores only input data
C. Its temporary data is normally lost when the power is turned off
D. It cannot store any data
Answer: C. Its temporary data is normally lost when the power is turned off
Explanation:
RAM is the computer’s working memory. It holds data and programs that are currently being used. Its contents are normally cleared when the computer loses power.
3. Which technology can be used to turn a printed document into editable text?
A. OCR
B. Firewall
C. Cache
D. Defragmentation
Answer: A. OCR
Explanation:
OCR stands for Optical Character Recognition. It can read text from a scanned or printed document and turn it into digital text that can be edited.
4. What is the main job of an Operating System?
A. Only print documents
B. Manage hardware and software resources
C. Only open websites
D. Only download files
Answer: B. Manage hardware and software resources
Explanation:
An Operating System helps users and applications work with the computer’s hardware. It also manages resources such as memory, processor time, and files.
5. Which statement about files stored on an SSD is correct?
A. Files are normally deleted when the power is turned off
B. An SSD is used only for temporary data
C. Stored data normally remains after the power is turned off
D. An operating system cannot be installed on an SSD
Answer: C. Stored data normally remains after the power is turned off
Explanation:
An SSD is non-volatile storage. Files and programs stored on it normally remain there even when the computer is turned off. This is different from RAM.
6. What is the main job of the ALU?
A. Perform arithmetic and logical operations
B. Provide an internet connection
C. Print documents
D. Back up files
Answer: A. Perform arithmetic and logical operations
Explanation:
ALU stands for Arithmetic Logic Unit. It handles calculations such as addition and subtraction and also performs logical operations and comparisons.
7. What is the main difference between RAM and ROM?
A. They are the same type of memory
B. RAM is volatile, while ROM is known as non-volatile memory
C. ROM is used only for the internet
D. RAM is used for permanent storage
Answer: B. RAM is volatile, while ROM is known as non-volatile memory
Explanation:
RAM is mainly used as temporary working memory. ROM generally refers to memory whose stored information remains available after the power is turned off.
8. What is cache memory mainly used for?
A. Helping the CPU access frequently needed data and instructions quickly
B. Printing permanent documents
C. Providing an internet connection
D. Removing malware
Answer: A. Helping the CPU access frequently needed data and instructions quickly
Explanation:
Cache is very fast memory. It keeps frequently needed data and instructions close to the processor so they can be accessed quickly.
9. Which MS Word feature helps you apply the formatting of one part of a document to another?
A. Format Painter
B. AutoSum
C. Slide Master
D. Task Manager
Answer: A. Format Painter
Explanation:
Format Painter copies the formatting of selected text or an object and lets you apply it to another part of the document. This can save time when the same formatting is needed in several places.
10. Which symbol is normally used to start a formula in MS Excel?
A. #
B. @
C. =
D. &
Answer: C. =
Explanation:
Excel formulas normally begin with an equal sign (=). For example, =A1+B1.
11. Which key can be used to edit the contents of an active cell in Excel?
A. F1
B. F2
C. F4
D. F5
Answer: B. F2
Explanation:
Pressing F2 in Excel puts the active cell into edit mode.
12. Which shortcut is commonly used to enter the current date in an Excel cell?
A. Ctrl + D
B. Ctrl + T
C. Ctrl + ;
D. Ctrl + Shift + D
Answer: C. Ctrl + ;
Explanation:
In Excel, Ctrl + ; enters the current date into the active cell.
13. Which shortcut is used for AutoSum in Excel?
A. Alt + =
B. Ctrl + =
C. Shift + =
D. Alt + S
Answer: A. Alt + =
Explanation:Alt + = helps insert a SUM formula in Excel, especially when working with a nearby range of numbers.
14. Which PowerPoint feature helps apply the same design or formatting to multiple slides?
A. Slide Master
B. AutoCorrect
C. Mail Merge
D. Track Changes
Answer: A. Slide Master
Explanation:
Slide Master lets you manage common design settings for slides. You can use it for things such as fonts, backgrounds, and placeholders.
15. Which shortcut is commonly used to add a new slide in PowerPoint?
A. Ctrl + L
B. Ctrl + M
C. Ctrl + Shift + M
D. Alt + M
Answer: B. Ctrl + M
Explanation:
In PowerPoint, Ctrl + M adds a new slide to the presentation.
16. Which key starts a PowerPoint slideshow from the beginning?
A. F2
B. F4
C. F5
D. F7
Answer: C. F5
Explanation:
Pressing F5 starts the PowerPoint slideshow from the beginning.
17. A website address starts with https://. What does HTTPS relate to?
A. Secure communication between the browser and website
B. Computer storage capacity
C. Printer connection
D. File compression
Answer: A. Secure communication between the browser and website
Explanation:
HTTPS is the secure version of HTTP. It uses TLS to help protect data sent between a browser and a website.
18. What is the web address entered into a browser’s address bar generally called?
A. URL
B. RAM
C. CPU
D. BIOS
Answer: A. URL
Explanation:
URL stands for Uniform Resource Locator. It is the address used to find a webpage or another resource on the web.
19. What is the full form of LAN?
A. Large Area Network
B. Local Area Network
C. Long Access Network
D. Linked Area Network
Answer: B. Local Area Network
Explanation:
LAN stands for Local Area Network. It is commonly used to connect devices within a limited area such as an office, school, or building.
20. What is the main purpose of a firewall?
A. Increase computer storage
B. Monitor and control network traffic
C. Increase screen brightness
D. Increase keyboard speed
Answer: B. Monitor and control network traffic
Explanation:
A firewall checks network traffic based on security rules and can allow or block connections. It can help prevent unauthorized network access.
21. What is malware?
A. A hardware component
B. Malicious software
C. A network cable
D. A file compression format
Answer: B. Malicious software
Explanation:
Malware means malicious software. It includes programs that can be designed to harm a system, steal information, or perform unwanted actions.
22. What is the main goal of a phishing attack?
A. Clean a computer screen
B. Trick a user into giving away sensitive information
C. Increase RAM capacity
D. Increase printer speed
Answer: B. Trick a user into giving away sensitive information
Explanation:
Phishing often uses fake emails, messages, or websites to trick people into sharing information such as passwords or banking details.
23. What is an email attachment used for?
A. Hiding an email address
B. Sending a file with an email message
C. Increasing internet speed
D. Changing a password automatically
Answer: B. Sending a file with an email message
Explanation:
An attachment lets you send files such as documents, images, and other supported file types with an email.
24. What is the common use of the Ctrl + C shortcut?
A. Cut
B. Copy
C. Close
D. Create
Answer: B. Copy
Explanation:Ctrl + C is commonly used to copy selected text, files, or other supported content.
25. What is the Ctrl + V shortcut used for?
A. View
B. Verify
C. Paste
D. Print
Answer: C. Paste
Explanation:Ctrl + V is commonly used to paste copied or cut content into the selected location.
26. If a computer loses power, which memory normally loses its temporary data?
A. RAM
B. SSD
C. ROM
D. Hard Disk
Answer: A. RAM
Explanation:
RAM is volatile memory. Its temporary contents are normally lost when the computer is turned off.
27. Which of the following can work as both an input and an output device?
A. Touchscreen
B. Keyboard
C. Printer
D. Speaker
Answer: A. Touchscreen
Explanation:
A touchscreen displays information and also receives input when you touch it. This allows it to work as both an output and an input device.
28. What is the process of getting a file from the internet onto your device called?
A. Upload
B. Download
C. Formatting
D. Scanning
Answer: B. Download
Explanation:
Getting a file from the internet or another remote system onto your device is called downloading. Sending a file from your device to a remote system is called uploading.
29. What is the difference between F5 and Shift + F5 in PowerPoint?
A. They do exactly the same thing
B. F5 starts the slideshow from the beginning, while Shift + F5 starts it from the current slide
C. F5 creates a new slide
D. Shift + F5 saves the presentation
Answer: B. F5 starts the slideshow from the beginning, while Shift + F5 starts it from the current slide
Explanation:
In PowerPoint, F5 starts the presentation from the beginning. Shift + F5 starts the slideshow from the current slide.
30. Which is a better password security practice?
A. Use the same password on every website
B. Write your password in a public place
C. Use strong and different passwords for different accounts
D. Use only your name as a password
Answer: C. Use strong and different passwords for different accounts
Explanation:
Using different strong passwords reduces the risk to your other accounts if one password is exposed. Where available, multi-factor authentication can provide another layer of security.
Quick Revision: What to Review
Use these points to quickly revise the topics covered in this set:
- Hardware and Processing: CPU and ALU
- Memory: RAM, ROM, and cache
- Storage: SSD and other basic storage technologies
- Input and Output: Touchscreen and other common devices
- Operating System: How it manages hardware, applications, and system resources
- MS Excel: Formulas, F2, current date, and AutoSum
- MS PowerPoint: New Slide, F5, and Shift + F5
- Internet: URL, browser, download, and email attachments
- Networking: LAN and basic network traffic
- Cybersecurity: Malware, phishing, firewall, and password security
- Shortcuts: Ctrl + C and Ctrl + V
This list covers the topics included in this article. It should not be treated as the complete syllabus for any particular exam. Always check the official notification and syllabus for the exam you are preparing for.
How to Prepare for Computer GK
Start with the basic topics first, such as CPU, ALU, RAM, ROM, cache, storage, and input and output devices. Once these are clear, move on to MS Word, Excel, PowerPoint, internet, networking, and cybersecurity. While practicing MCQs, do not focus only on the correct answer. Read the explanation and understand why it is correct. This can help with topics that are easy to confuse, such as RAM and ROM, upload and download, or input and output devices.
For keyboard shortcuts, practice them in Excel, Word, or PowerPoint when possible. Using them yourself can make them easier to remember during exam preparation. If you get a question wrong, note the topic and revise it later. Keep practicing questions from that topic until you are comfortable with it.
Simple Daily Study Plan
A short daily routine can work well for Computer GK preparation:
- 20 minutes: Study one computer topic.
- 15 minutes: Solve 10–15 MCQs.
- 10 minutes: Check your answers and read the explanations.
- 10 minutes: Revise questions you got wrong earlier.
- 5 minutes: Review important terms or keyboard shortcuts.
Conclusion
Computer GK questions are often based on simple definitions, but a small difference between two options can change the correct answer. So, make sure you understand differences such as RAM vs ROM, upload vs download, and F5 vs Shift + F5.
Try solving this MCQ set before checking the answers. Then review the explanations and go back to the topics where you made mistakes. This makes the set useful for both practice and concept revision.
For exam preparation, always check the official notification and syllabus for your exam. Different exams may cover different Computer Awareness topics and may use different question patterns.
- Related Articles
- Computer Shortcut Keys: Ctrl, Alt, Function Keys aur MS Office Shortcuts
- Rajasthan JE Recruitment 2026: 874 Posts, Eligibility, Syllabus, Salary & Apply Online
- Rajasthan CET Graduation Level Syllabus 2026: Subject-Wise Topics, Exam Pattern, Marks Aur Taiyari
“Computer GK aur competitive exam preparation se judi official information ke liye Rajasthan Staff Selection Board (RSSB) ki website check kar sakte hain.”
Computer GK MCQs FAQs
Which topics are important in Computer GK?
Common topics include computer fundamentals, hardware, memory, operating systems, MS Office, the internet, networking, cybersecurity, and keyboard shortcuts.
Is Computer GK useful for banking exams?
Yes. Computer awareness is useful for banking exam preparation. The topics and difficulty level can vary depending on the exam pattern.
Can Computer Knowledge be asked in CET?
The exact syllabus depends on the exam and the conducting authority. Rajasthan CET syllabus references have included topics such as computer characteristics, RAM, ROM, input devices, software, operating systems, and MS Office.
Is solving MCQs necessary for Computer GK preparation?
MCQs are useful for practicing concepts in an exam-style format and finding topics that need more revision. After each practice session, review the questions you answered incorrectly.
How much Computer GK should I practice every day?
You can start with 10–15 MCQs a day and review the answers and explanations. As your exam gets closer, you can increase the number of questions and take short mock tests to improve your speed and accuracy.
