Top 30 Computer & IT MCQs with Answers for Competitive Exams (2026)

Top 30 Computer & IT MCQs with Answers for Competitive Exams (2026)

1. Who is known as the "Father of Computer"?

A) Alan Turing
B) Charles Babbage
C) Bill Gates
D) Steve Jobs
 
2. Which component is considered the "Brain of the Computer"?

A) RAM
B) Motherboard

C) CPU
D) Hard Disk
 
3. What does WWW stand for in a website address?

A) World Wide Wrestling
B) World Wide Web
C) World Wide Word
D) World Width Web
 
4. Which of the following is an Input Device?

A) Printer
B) Monitor
C) Speaker
D) Keyboard
 
5. What is the full form of CPU?

A) Central Processing Unit
B) Control Processing Unit
C) Core Processing Unit
D) Computer Processing Unit
 
6. What does RAM stand for?

A) Read Access Memory
B) Random Access Memory
C) Rapid Access Memory
D) Real Access Memory
 
7. ROM (Read-Only Memory) is which type of memory?

A) Volatile (Temporary)
B) Non-Volatile (Permanent)
C) Virtual Memory
D) Cache Memory
 
8. What is the smallest unit of data in a computer?

A) Byte
B) Bit
C) Kilobyte
D) Nibble
 
9. 1 Kilobyte (KB) is equal to how many Bytes?

A) 1000 Bytes
B) 1024 Bytes
C) 1048 Bytes
D) 512 Bytes
 
10. What does URL stand for?

A) Uniform Resource Locator
B) Universal Resource Locator
C) Uniform Resource Link
D) United Resource Locator
 
11. Which of the following is NOT an Operating System (OS)?

A) Windows
B) Linux
C) macOS
D) MS Office
 
12. What is the shortcut key to "Cut" text or a file in Windows?

A) Ctrl + C
B) Ctrl + V
C) Ctrl + X
D) Ctrl + Z
 
13. Which shortcut key is used to "Paste" copied items?

A) Ctrl + P
B) Ctrl + V
C) Ctrl + S
D) Ctrl + C
 
14. What does PDF stand for?

A) Portable Document Format
B) Printable Document Format
C) Private Document Format
D) Port Document File
 
15. Which was the first supercomputer developed in India?

A) PRAM
B) PARAM 8000
C) AGNI
D) SHAKTI
 
16. Which network protocol is primarily used to transfer files over the internet?

A) HTTP
B) FTP
C) SMTP
D) IP
 
17. Which of the following is a Social Media platform and NOT a search engine?

A) Google
B) Yahoo
C) Bing
D) Instagram
 
18. What language does a computer understand natively?

A) High-Level Language
B) Binary / Machine Language
C) English Language
D) Assembly Language
 
19. Which two digits are used in the Binary Language system?

A) 1 and 2
B) 0 and 1
C) A and B
D) 9 and 0
Answer: B) 0 and 1

20. What is the full form of E-mail?

A) Electric Mail
B) Electronic Mail
C) Engine Mail
D) Essential Mail
 
21. In computer networking, what does LAN stand for?

A) Local Area Network
B) Long Area Network
C) Light Area Network
D) Land Area Network
 
22. The first page or opening page of a website is called the:

A) Web Page
B) Home Page
C) Main Page
D) First Page
 
23. Which memory loses its data immediately when the computer power is turned off?

A) ROM
B) RAM
C) Hard Disk
D) CD-ROM
 
24. Microsoft Word (MS Word) is an example of:

A) System Software
B) Application Software
C) Utility Software
D) Operating System
 
25. A computer virus is actually a:

A) Biological Bacteria
B) Hardware Component
C) Man-made Computer Program
D) Network Cable
 
26. Which of the following is an example of an Anti-Virus software?

A) Google Chrome
B) Quick Heal
C) Windows 11
D) Adobe Photoshop
 
27. Which device is used to store data permanently in a PC?

A) RAM
B) Cache Memory
C) Hard Disk / SSD
D) Register
 
28. What is the shortcut key to "Select All" text or files?

A) Ctrl + A
B) Ctrl + S
C) Ctrl + Alt
D) Shift + A
 
29. The smallest controllable dot or element on a computer screen is called a:

A) Element
B) Pixel
C) Point
D) Screen-dot
 
30. Which social media platform is primarily used for professional networking and job search?

A) Facebook
B) LinkedIn
C) Snapchat
D) Threads

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