System Unit Internal Features

TOPIC: Continuation – System Unit Internal Features
SUBTOPIC: More Internal Parts and How They Work Together
CLASS: Basic 3
AGE: 7–8 years
DATE: ____________________
PERIOD: ____________________
DURATION: 40 minutes

LEARNING OBJECTIVES

By the end of the lesson, pupils should be able to:

1. Identify additional internal parts of the CPU.
2. Explain in simple words how these parts work together.
3. Appreciate the importance of keeping the CPU clean.

KEY VOCABULARY WORDS

• Hard Disk Drive (HDD)
• Solid State Drive (SSD)
• Expansion Slot
• Graphics Card
• Heat Sink

INSTRUCTIONAL MATERIALS

• Diagram of CPU with labels
• Real computer parts (if available)

CONTENT OF THE LESSON

Other Internal Parts of the CPU

Reason why we clean our CPU

Dust can block the fan and cause the CPU to overheat. This makes the computer slow or even damage it.

Components of the CPU

The CPU (Central Processing Unit) has three main parts:

• ALU (Arithmetic Language Unit) – It does calculations.
• CU (Control Unit) – It directs how data moves.
• Registers – It store small bits of data for quick use.

INTRODUCTORY ACTIVITY

Teacher shows pupils a dusty fan and a clean fan, asking which is better for the computer.

CLASS EXERCISE 1

Fill in the blanks:

1. The __________ stores files permanently.
2. The __________ shows clear pictures and videos.
3. The __________ absorbs heat from the processor.

CLASS EXERCISE 2

Match the part to its use:

• HDD → __________
• Graphics Card → __________
• Heat Sink → __________

ASSIGNMENT (Multiple-Choice Questions)

1. Which part stores programs forever? A. RAM B. HDD C. Fan D. PSU
2. Which part makes games look good? A. RAM B. Graphics Card C. PSU D. HDD
3. SSD is faster than? A. HDD B. PSU C. RAM D. Motherboard
4. Expansion slots are used to? A. Store data B. Add new cards C. Cool the CPU D. Supply power
5. A heat sink helps to? A. Store data B. Cool processor C. Give power D. Show images