MCQs** on *Computer Basics* and *Computer Components*, complete with

options and answer

✅ **Multiple Choice Questions (MCQs – 60 Questions)**

**1. What is the brain of the computer?**

A) RAM

B) CPU

C) Hard Disk

D) Monitor

**(Answer: B)**

**2. Which component temporarily stores active data?**

A) SSD

B) HDD

C) RAM

D) ROM

**(Answer: C)**

**3. A keyboard is an example of which type of device?**

A) Output

B) Storage

C) Input

D) Processing
**(Answer: C)**

**4. Which storage device has no moving parts?**

A) HDD

B) SSD

C) Floppy Disk

D) CD-ROM

**(Answer: B)**

**5. What device displays visual output?**

A) Mouse

B) Printer

C) Monitor

D) Speaker

**(Answer: C)**

**6. Which device produces hard copies of digital documents?**

A) Monitor

B) Printer

C) Keyboard

D) Speaker

**(Answer: B)**
**7. What part connects all internal hardware together?**

A) CPU

B) RAM

C) Motherboard

D) GPU

**(Answer: C)**

**8. Which is responsible for graphics rendering?**

A) SSD

B) CPU

C) GPU

D) RAM

**(Answer: C)**

**9. Which is a storage device used for permanent data?**

A) RAM

B) ROM

C) SSD

D) Cache

**(Answer: C)**
**10. Which is software that manages hardware and apps?**

A) Utility

B) Operating System

C) Web Browser

D) Text Editor

**(Answer: B)**

**11. A mouse is mainly used to:**

A) Display graphics

B) Print images

C) Control pointer

D) Enter text

**(Answer: C)**

**12. What memory type is lost when power is turned off?**

A) SSD

B) ROM

C) RAM

D) HDD

**(Answer: C)**

**13. Which is NOT a computer component?**

B) CPU

C) Monitor

D) Spreadsheet

**(Answer: D)**

**14. A scanner converts:**

A) Text to sound

B) Digital to physical

C) Physical to digital

D) Sound to image

**(Answer: C)**

**15. The purpose of a power supply unit is to:**

A) Boost internet speed

B) Process instructions

C) Display output

D) Supply power to components

**(Answer: D)**

**16. ROM stands for:**

A) Random Only Memory

C) Real Output Module

D) Rotational Object Memory

**(Answer: B)**

**17. Operating system is a type of:**

A) Hardware

B) Storage device

C) Application software

D) System software

**(Answer: D)**

**18. Which is used to input audio?**

A) Speaker

B) Monitor

C) Microphone

D) Printer

**(Answer: C)**

**19. What’s the purpose of a network interface card (NIC)?**

A) Print documents

B) Connect to internet
C) Display graphics

D) Store data

**(Answer: B)**

**20. Which device provides visual feedback from computer?**

A) Mouse

B) Monitor

C) Keyboard

D) Scanner

**(Answer: B)**

**21. Cache memory is located closest to:**

A) GPU

B) Hard drive

C) CPU

D) Motherboard

**(Answer: C)**

**22. A touchpad is commonly found on:**

A) Desktop PCs

B) Servers

C) Laptops
D) Tablets

**(Answer: C)**

**23. Software responsible for basic computer startup is stored in:**

A) RAM

B) ROM

C) Hard Drive

D) SSD

**(Answer: B)**

**24. Which device combines input and output functions?**

A) Touchscreen

B) Keyboard

C) Printer

D) Monitor

**(Answer: A)**

**25. What does GUI stand for?**

A) General User Information

B) Graphical User Interface

C) Global User Identifier

D) Group Usage Interface

**26. Which port connects modern monitors?**

A) VGA

B) HDMI

C) Ethernet

D) Audio Jack

**(Answer: B)**

**27. What is an example of an input device?**

A) Monitor

B) Scanner

C) Speaker

D) Printer

**(Answer: B)**

**28. Supercomputers are used for:**

A) Word processing

B) Gaming

C) Scientific simulations

D) Social media

**(Answer: C)**
**29. What is system software?**

A) Antivirus

B) Operating system

C) Spreadsheet

D) Presentation software

**(Answer: B)**

**30. What is the full form of SSD?**

A) Solid Speed Disk

B) Secure Storage Drive

C) Solid State Drive

D) Static Storage Disk

**(Answer: C)**

**31. A mainframe computer is most suitable for:**

A) Personal use

B) Office presentations

C) Bank transactions

D) Gaming

**(Answer: C)**
**32. What does a server do?**

A) Displays graphics

B) Scans documents

C) Provides services to other computers

D) Performs audio output

**(Answer: C)**

**33. What is the job of a file management system?**

A) Manage hardware

B) Sort and organize files

C) Control cursor

D) Print documents

**(Answer: B)**

**34. Which storage is known for durability and speed?**

A) Floppy Disk

B) HDD

C) SSD

D) CD-ROM

**(Answer: C)**

**35. The CPU performs which type of operations?**

B) Input

C) Arithmetic and logic

D) Audio output

**(Answer: C)**

**36. A firewall protects against:**

A) Hardware failure

B) Power loss

C) Unauthorized access

D) Data printing

**(Answer: C)**

**37. Which software assists in typing documents?**

A) Spreadsheet

B) Presentation software

C) Word processor

D) File manager

**(Answer: C)**

**38. Embedded systems are found in:**

A) Smartphones
B) Tablets

C) Washing machines

D) Desktop PCs

**(Answer: C)**

**39. What part is critical for powering computer parts?**

A) CPU

B) GPU

C) PSU

D) RAM

**(Answer: C)**

**40. Which is a high-speed memory in a processor?**

A) ROM

B) RAM

C) HDD

D) Cache

**(Answer: D)**

**41. Webcam is used for:**

A) Displaying images

B) Capturing video
C) Producing sound

D) Cooling system

**(Answer: B)**

**42. The motherboard contains:**

A) Only RAM

B) All major components

C) Only CPU

D) Only Storage

**(Answer: B)**

**43. What does a modem do?**

A) Transmit sound

B) Control printing

C) Convert digital to analog signals

D) Power the PC

**(Answer: C)**

**44. Which storage is rewritable and optical?**

A) CD-ROM

B) DVD-RW

C) SSD
D) Floppy Disk

**(Answer: B)**

**45. What type of computer is used by a single user at a time?**

A) Supercomputer

B) Server

C) Personal Computer

D) Mainframe

**(Answer: C)**

**46. Antivirus software protects against:**

A) Hardware damage

B) Dust

C) Malware and viruses

D) Power surge

**(Answer: C)**

**47. Data stored in ROM is:**

A) Temporary

B) Volatile

C) Permanent

D) Optional
**(Answer: C)**

**48. The function of an expansion slot is to:**

A) Insert flash drives

B) Upgrade computer hardware

C) Charge the computer

D) Clean the motherboard

**(Answer: B)**

**49. Heat sinks are attached to:**

A) Monitor

B) Mouse

C) CPU

D) Keyboard

**(Answer: C)**

**50. The binary number system uses:**

A) 3 digits

B) Letters

C) 0 and 1

D) Images

**(Answer: C)**
**51. Which key opens the Start menu in Windows?**

A) Alt

B) Tab

C) Windows

D) Esc

**(Answer: C)**

**52. Which software assists in calculating data?**

A) Paint

B) PowerPoint

C) Excel

D) Word

**53. Boot device contains OS for startup**

A) Mouse

B) Display

C) Storage with OS

D) Power supply

**(Answer: C)**

**54. Mouse function in GUIs**

A) Scanner

B) Printer
C) Mouse

D) Webcam

**(Answer: C)**

**55. Scanner’s role**

A) Input images/text

B) Process graphics

C) Paper output

D) Web access

**(Answer: A)**

**56. Touchscreen type**

A) Output

B) Input

C) Input/Output

D) Storage

**(Answer: C)**

**57. Networking device**

A) USB

B) Modem

C) HDMI
D) NIC

**(Answer: D)**

**58. RAM’s key role**

A) Permanent storage

B) Graphics processing

C) Temporary memory

D) Peripheral control

**(Answer: C)**

**59. Reliable computing system**

A) Gaming PC

B) Mainframe

C) Laptop

D) Tablet

**(Answer: B)**

**60. Software definition**

A) Physical components

B) Instruction sets

C) Input devices

D) Screens
**(Answer: B)

---

## 🔀 **Section 2: Matching Questions (20 Pairs)**

Match each computer term to its corresponding definition or function.

| **Term** | **Definition** |

|---------------------|-----------------------------------------|

| 1. CPU | A. Brain of the computer |

| 2. RAM | B. Temporarily stores active data |

| 3. SSD | C. Fast permanent storage |

| 4. HDD | D. Slower long-term storage |

| 5. GPU | E. Handles graphics and visuals |

| 6. Motherboard | F. Connects all components |

| 7. PSU | G. Converts electricity to usable power |

| 8. Monitor | H. Displays output visually |

| 9. Keyboard | I. Inputs characters and symbols |

| 11. Printer | K. Outputs hard copy of documents |

| 12. Scanner | L. Inputs physical documents digitally |

| 13. Speaker | M. Outputs sound |

| 14. Operating System| N. Manages software and hardware |

| 15. Application | O. Software for specific tasks |

| 16. Cache Memory | P. Temporary high-speed memory |

| 17. ROM | Q. Permanent memory, read-only |

| 18. Server | R. Provides services to clients |

| 19. Supercomputer | S. Handles complex scientific tasks |

| 20. Embedded System | T. Built into other devices |

---

## ✏️**Section 3: Fill-in-the-Blank (10 Questions)**

Write the correct word(s) in the blank space.

1. The _____ is responsible for executing instructions and processing data.

2. A _____ is used to convert digital output into printed form.

3. _____ memory loses its content when power is turned off.

4. The _____ controls pointer movements on a screen.

6. A _____ is used to store data even when the computer is turned off.

7. _____ is used to input text and numbers into a computer.

8. The _____ board houses the CPU, RAM, and other components.

9. A _____ is a program that performs specific user tasks.

10. _____ computers are embedded into machinery or electronics.

---

## 🧠 **Section 4: Essay Questions (10 Prompts)**

Each prompt encourages deep reasoning and knowledge expression.

1. Explain the functions and importance of the CPU in a computer system.

2. Compare the differences between RAM and ROM and their roles.

3. Discuss the evolution of storage devices from HDDs to SSDs.

4. Describe how input and output devices interact with system components.

5. Explain the purpose of an operating system and give examples.

6. What is the role of the motherboard in ensuring system communication?

7. Compare different types of computers and their uses in modern society.

8. Explain how supercomputers differ from personal computers.

9. Describe how embedded systems support daily-life technologies.