The document describes the main components of a computer system: the input unit, central processing unit, memory, and output unit. It provides examples of common input devices like keyboards, mice, and scanners that provide data to the computer. It also lists the central processing unit as the brain of the computer and memory components like RAM, ROM, and hard disks that store data and instructions. The output unit is described as using devices like monitors, printers, and plotters to display or print the computer's processed output.

2. 4
• 1. Input Unit)
• 2. Central
Processing Unit)
• 3. Memory)
• 4. Output Unit)

3. Input Unit)
•
- Keyboard - CD-Rom
- Mouse - Magnetic Tape
- Disk Drive - Card Reader
- Hard Drive - Scanner

4. Input Unit)
Keyboard

5. Input Unit)
Mouse

6. Input Unit)
Scanner

7. Central
Processing Unit)

8. Central
Processing Unit)
•
2
-
-

9. Memory)
•
- ROM
- RAM
-

10. Memory)
Hard disk
Ram

11. Output Unit)
•
- Monitor
- Printer
- Plotter

12. 1.
Mouse
CD-Rom
Ram
Hard disk

13. 1.
Mouse
CD-Rom
Ram
Hard disk

14. 2.
Mouse
CPU
Monitor
Hard disk

15. 2.
Mouse
CPU
Monitor
Hard disk

16. 3.
RAM
CPU
CD-Rom
Hard disk

17. 3.
RAM
CPU
CD-Rom
Hard disk

18. 4.
RAM
CPU
CD-Rom
Hard disk

19. 4.
RAM
CPU
CD-Rom
Hard disk

20. 5.
Keyboard
Mouse
CD-Rom
Monitor

21. 5.
Keyboard
Mouse
CD-Rom
Monitor