Meaning of Computer Hardware, Internal Hardware Components, Input Devices and Output Devices for JSS 1

Class: JSS 1
Term: First Term
Week: 3
Age: 12 years
Duration: 45 minutes
Subject: Digital Technologies
Curriculum Theme: Basics of computing
Focal competence: Identifying basic computer and network components with their functions
Key competencies/values: ICT and Digital Competencies
Skills:

• Identify the internal hardware components of a computer

Previous Lesson: Career opportunities in In
Topic: Basic Computer Hardware Components I
Subject Matter: meaning of computer hardware, internal hardware components, input devices, output devices, storage devices

Specific Objectives

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

Cognitive Domain

• Define computer hardware.
• Identify various internal hardware components of a computer.
• State the functions of different memory types like RAM, ROM, and Flash Memory.
• Identify the Central Processing Unit (CPU) and give an example like Intel Core i5.
• Identify common input devices.
• Identify common output devices.
• Identify common storage devices.

Psychomotor Domain

• Physically examine different computer components.
• Point out specific internal hardware components in a disassembled computer.

Reference Materials

The following resources were used in planning this lesson:

• 2025 Revised 9 Years Basic Education Curriculum
• Relevant State Unified Scheme of Work
• Digital Technologies for Junior Secondary Schools 1
• The HeadTeacher Scheme of work

Instructional Materials

The teacher will teach this lesson with the aid of:

• Computers (working or non-working for demonstration)
• Disassembled desktop or laptop (if available)
• Actual RAM modules
• Actual Hard drive
• Actual CPU
• Keyboard
• Mouse
• Monitor
• Printer
• Flash drive
• CD/DVD
• Charts or diagrams showing computer hardware components

Rationale for the Lesson

This lesson is important as it lays the foundation for understanding how computers work by introducing students to their physical components. Knowing the different parts of a computer helps students appreciate its functionality and prepares them for more advanced digital literacy. It also enables them to troubleshoot basic computer issues and make informed decisions about computer usage.

Prerequisite/Previous Knowledge

Students should have basic knowledge of what a computer is and its general uses in everyday life.

Lesson Content/Board Summary

Basic Computer Hardware Components I

Meaning of Computer Hardware

Computer hardware refers to the physical components of a computer system that can be seen and touched. These are the tangible parts that make up a computer, unlike software which is a set of instructions.

Examples of computer hardware include:

1. Monitor
2. Keyboard
3. Mouse
4. CPU (Central Processing Unit)
5. RAM (Random Access Memory)
6. Hard drive
7. Printer
8. Speaker

Internal Hardware Components

Internal hardware components are the parts of a computer system located inside the computer casing. They are essential for the computer’s operation.

Key internal hardware components include:

1. Motherboard: The main circuit board that connects all other components.
2. Central Processing Unit (CPU): The “brain” of the computer that performs calculations and executes instructions.
3. Memory (RAM and ROM): Stores data and instructions temporarily or permanently.
4. Hard Drive/Solid State Drive: Stores all data and programs permanently.
5. Power Supply Unit (PSU): Provides electrical power to all components.
6. Graphics Card (GPU): Processes and outputs images to the monitor.

Memory

Memory is where the computer stores information for quick access.

1. Random Access Memory (RAM): This is a type of volatile memory that stores data and programs currently being used by the CPU. Data in RAM is lost when the computer is turned off.
2. Read-Only Memory (ROM): This is a non-volatile memory that stores permanent instructions needed to start up the computer (BIOS). Data in ROM is not lost when the computer is turned off.
3. Flash Memory: A non-volatile computer storage medium that can be electrically erased and reprogrammed. It is often used in USB drives and solid-state drives (SSDs).

Central Processing Unit (CPU)

The CPU is the primary component of a computer that performs most of the processing inside the computer. It executes instructions and processes data.

An example of a CPU is:

1. Intel Core i5

Input Devices

Input devices are hardware components used to send data and instructions into a computer system.

Examples of input devices include:

1. Keyboard (for typing text)
2. Mouse (for pointing and clicking)
3. Scanner (for converting physical documents to digital images)
4. Microphone (for recording audio)
5. Webcam (for capturing video and images)

Output Devices

Output devices are hardware components used to display or present information processed by the computer to the user.

Examples of output devices include:

1. Monitor (for displaying visual information)
2. Printer (for producing hard copies of documents)
3. Speakers (for playing audio)
4. Projector (for displaying images onto a large screen)

Storage Devices

Storage devices are hardware components used to store data and programs permanently or temporarily for later retrieval.

Examples of storage devices include:

1. Hard Disk Drive (HDD)
2. Solid State Drive (SSD)
3. Flash Drive (USB drive)
4. Memory Card
5. CD/DVD (Optical Discs)

Teaching Methods/Instructional Techniques

Discussion, Demonstration, Guided Practice, Question and Answer, Explanation, Observation, Group Work

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Engaging/Questioning

Teacher’s Activity: The teacher greets the students and asks them what they understand by the word “computer” and what parts they can identify on a computer system. The teacher then introduces the topic: Basic Computer Hardware Components I.

Pupils’ Activity: Students respond by sharing their understanding of a computer and naming some parts they know.

Learning Point: Activating prior knowledge

Step 2: Meaning of Computer Hardware

Time: 7 minutes

Teaching Skill: Explanation/Definition

Teacher’s Activity: The teacher explains the meaning of computer hardware, emphasizing that it refers to the physical, tangible parts of a computer. The teacher uses examples like monitor, keyboard, and mouse to illustrate.

Pupils’ Activity: Students listen attentively and contribute examples of hardware they know.

Learning Point: Definition of hardware

Step 3: Internal Hardware Components

Time: 8 minutes

Teaching Skill: Demonstration/Identification

Teacher’s Activity: The teacher displays a disassembled computer or uses charts/diagrams to show internal hardware components. The teacher identifies and explains the functions of the Motherboard, CPU, RAM, ROM, and Flash Memory, using actual components where available. The teacher also mentions Intel Core i5 as an example of a CPU.

Pupils’ Activity: Students observe the components, ask questions, and identify them as the teacher points them out. They participate in group brainstorming on functions.

Learning Point: Internal hardware identification

Step 4: Input Devices

Time: 5 minutes

Teaching Skill: Demonstration/Explanation

Teacher’s Activity: The teacher introduces input devices, explaining their role in sending data to the computer. The teacher demonstrates common input devices like a keyboard, mouse, and microphone, explaining their functions.

Pupils’ Activity: Students identify the devices and explain how they are used to input data.

Learning Point: Understanding input devices

Step 5: Output Devices

Time: 5 minutes

Teaching Skill: Demonstration/Explanation

Teacher’s Activity: The teacher explains output devices and their role in displaying processed information. The teacher demonstrates common output devices such as a monitor, printer, and speakers, explaining their functions.

Pupils’ Activity: Students identify the devices and explain how they receive output from the computer.

Learning Point: Understanding output devices

Step 6: Storage Devices

Time: 5 minutes

Teaching Skill: Explanation/Examples

Teacher’s Activity: The teacher explains storage devices as components used to save data permanently or temporarily. The teacher provides examples like hard drives, flash drives, and memory cards, explaining their purpose.

Pupils’ Activity: Students list various storage devices and discuss their uses.

Learning Point: Understanding storage devices

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

1. What is computer hardware?
2. Mention two internal hardware components and their functions.
3. Name one type of computer memory and its purpose.
4. Give two examples of input devices.
5. Give two examples of output devices.
6. Name two common storage devices.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Hardware component recall

Step 8: Note-Taking

Time: 4 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils/students to copy the essential Board Summary notes on computer hardware and its components into their notebooks.

Pupils’ Activity: Pupils/students copy the notes carefully into their notebooks.

Learning Point: Recording lesson summary

Step 9: Conclusion

Time: 1 minute

Teaching Skill: Summarizing

Teacher’s Activity: The teacher briefly summarizes the key points of the lesson, reminding students about the importance of understanding computer hardware for effective computer usage.

Pupils’ Activity: Students listen and reflect on the lesson.

Learning Point: Consolidating hardware knowledge

Continuous Assessment/Further Study

Type: Homework

Instruction: Answer the following questions in your Digital Technologies notebook:

1. Draw and label any three internal hardware components of a computer.
2. Differentiate between an input device and an output device, giving two examples for each.
3. Research and write a short paragraph on why the CPU is called the “brain” of the computer.

Lesson Keywords

• Hardware – Physical components of a computer.
• Internal Components – Parts inside the computer casing.
• CPU – Central Processing Unit, the computer’s brain.
• RAM – Random Access Memory, temporary storage.
• ROM – Read-Only Memory, permanent startup instructions.
• Flash Memory – Re-programmable non-volatile storage.
• Input Device – Sends data into the computer.
• Output Device – Displays processed information.
• Storage Device – Stores data permanently.

Differentiation

For weaker learners, the teacher will provide simplified diagrams and focus on identifying the most common components with their basic functions. Faster learners can be challenged to research specific models of CPUs (e.g., different generations of Intel Core i5) or identify less common hardware components like network cards or sound cards.

Suggested Lesson Videos

For further understanding, search on YouTube for:

• “What is computer hardware for kids”
• “Internal computer components explained”
• “Input and output devices for JSS 1”

Teacher Guide for Using This Lesson Plan

Before the lesson, ensure you have actual computer hardware components (disassembled PC, RAM, CPU, hard drive, keyboard, mouse, monitor, flash drive) or clear visual aids like charts and diagrams. Begin by engaging students with questions about what they already know about computers. During the lesson development steps, actively demonstrate each component and explain its function clearly. Encourage group discussions and allow students to physically examine the components, if safe and practical. Pay close attention to students’ understanding of the different types of memory (RAM, ROM, Flash) and the distinction between input, output, and storage devices. Students should copy the Board Summary notes during Step 8. Conclude by reinforcing the main concepts and assigning the continuous assessment task to solidify their learning.