2. WALT To know a description of a computer system. WILF All students will be to provide examples of the main components of a computer system(Grade E/D). Most will know the descriptions of the components roles and uses (Grade D/C). Some students will be able provide examples of different types of storage devices (Grade B/A). WALT To know a description of a computer system. WILF All students will be to provide examples of the main components of a computer system(Grade E/D). Most will know the descriptions of the components roles and uses (Grade D/C). Some students will be able provide examples of different types of storage devices (Grade B/A).

3. In this lesson we will look at the different components (parts) of a computer system. You will see what role each component plays within the computer system. You will also get to understand the features of each component. This lesson also briefly introduces the different forms of storage devices that we use to hold data. Introduction

4. DEFINITION: "All the different pieces of electrical hardware that join together to make up the complete computer system.” Computer Components

7. Motherboard

9. CPU – Central Processing Unit

11. Internal Memory – RAM – Random Access Memory

13. Internal Memory – ROM – Read Only Memory

15. Difference between RAM and ROM

16. Graphics Card

19. Peripheral devices

21. Storage Devices - Seondary

22. Storage Devices - Secondary

23. Input Devices

25. Output Devices When inputted raw data has been processed it becomes usable information. Output devices are pieces of hardware that send this usable information out of the computer. Some output devices send information out temporarily and some send information out permanently: Temporary Output Devices - E.g. Monitors which constantly refresh the outputted image on the screen Permanent Output Devices - E.g. Printers which output information onto paper as a hard copy.

26. Output Devices

27. Lesson Task Complete the three worksheets provided