Computers are made up of hardware components like input, output, processing, and storage devices. They also use software like system and application programs. People interact with computers as end users or experts. Computers can range from super computers to smartphones and perform different functions based on their size and capabilities. They allow users to enter data, process and store information, and communicate with output and networking devices.

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3. •
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5. Hardware
Input Device
Output Device
Processing Device
Storage Device
Communication Device

6. Software
System Software
Application Software

7. People
End User
Computer Expert

8. Data & Process

9. Communication

10. • 5
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• 2
• 3
• 4
• 5

11. 1

12. 2

13. 3

14. 4, 5

15. • Super Computer
• Mainframe Computer
• Mini Computer or Workstation
• Micro Computer or Personnel Computer
• Smart phone or Mobile phone

16. Super Computer

17. Mainframe Computer

18. Mini Computer,
Workstation

19. Micro Computer, PC
PDA, Mobile Phone