30 MCQs on Computers, Networks, Software & Hardware
1. What is the brain of the computer?
- A) Keyboard
- B) Mouse
- C) CPU ✅️
- D) Monitor
2. Which of the following is not an input device?
- A) Keyboard
- B) Scanner
- C) Monitor ✅️
- D) Microphone
3. What does URL stand for?
- A) Uniform Resource Locator ✅️
- B) Universal Reference Link
- C) Unified Resource Link
- D) Uniform Reference Locator
4. Which storage device is non-volatile?
- A) RAM
- B) Cache
- C) Hard Disk ✅️
- D) Registers
5. Which software directly controls computer hardware?
- A) Application Software
- B) Operating System ✅️
- C) Utility Program
- D) Firmware
6. What type of network covers a large geographic area, like a country?
- A) LAN
- B) MAN
- C) WAN ✅️
- D) PAN
7. Which part of the computer is responsible for calculations and logic operations?
- A) Control Unit
- B) ALU ✅️
- C) Memory Unit
- D) Input Device
8. What does IP stand for in networking?
- A) Internal Program
- B) Internet Protocol ✅️
- C) Intranet Procedure
- D) Integrated Program
9. Which of the following is an example of system software?
- A) Windows 11 ✅️
- B) Microsoft Word
- C) Google Chrome
- D) Photoshop
10. Which computer memory is fastest?
- A) RAM
- B) Hard Disk
- C) Cache ✅️
- D) CD-ROM
11. Which of the following is NOT a web browser?
- A) Chrome
- B) Firefox
- C) Safari
- D) Linux ✅️
12. Which device connects a LAN to the Internet?
- A) Switch
- B) Hub
- C) Router ✅️
- D) Bridge
13. What does GUI stand for?
- A) General User Internet
- B) Global Utility Interface
- C) Graphical User Interface ✅️
- D) General Unit Integration
14. Which key is used to refresh a webpage in most browsers?
- A) F2
- B) F3
- C) F5 ✅️
- D) F12
15. Which device is used for permanent storage?
- A) RAM
- B) Cache
- C) SSD ✅️
- D) Registers
16. Which port is commonly used for Internet browsing?
- A) 20
- B) 80 ✅️
- C) 21
- D) 23
17. Which of these is an open-source operating system?
- A) Windows
- B) MacOS
- C) Linux ✅️
- D) Android (commercial)
18. Which computer generation used vacuum tubes?
- A) First Generation ✅️
- B) Second Generation
- C) Third Generation
- D) Fourth Generation
19. Which shortcut is used to copy selected text?
- A) Ctrl + X
- B) Ctrl + C ✅️
- C) Ctrl + V
- D) Ctrl + P
20. The physical parts of the computer are called?
- A) Software
- B) Hardware ✅️
- C) Data
- D) Programs
21. Which of these is an output device?
- A) Keyboard
- B) Printer ✅️
- C) Scanner
- D) Microphone
22. Which memory is volatile?
- A) RAM ✅️
- B) ROM
- C) SSD
- D) Hard Disk
23. What is the smallest unit of data in a computer?
- A) Byte
- B) Bit ✅️
- C) Nibble
- D) Word
24. Which of the following is application software?
- A) Windows
- B) MS Word ✅️
- C) Linux
- D) MacOS
25. Which protocol is used to send emails?
- A) FTP
- B) SMTP ✅️
- C) HTTP
- D) SNMP
26. What does HTML stand for?
- A) HighText Machine Language
- B) HyperText Markup Language ✅️
- C) Hyperlink Markup Language
- D) Home Tool Markup Language
27. Which of these is an example of cloud storage?
- A) Hard Disk
- B) Pen Drive
- C) Google Drive ✅️
- D) DVD
28. What does BIOS stand for?
- A) Basic Input and Output Software
- B) Basic Input/Output System ✅️
- C) Binary Input Output Setup
- D) Built-in Operating Setup
29. Which of these is used to uniquely identify a device on a network?
- A) Domain Name
- B) Gateway
- C) IP Address ✅️
- D) Subnet
30. Which of these is not an example of an operating system?
- A) Windows
- B) Linux
- C) Oracle ✅️
- D) MacOS
