Technologies · Foundation · Digital Systems in Our World · Term 1

Basic Hardware: Visible Components

Students will identify and name the visible external components of a computer system (e.g., monitor, keyboard, mouse, tower) and their basic functions.

• ACARA Content Descriptions
• AC9TDEFK01

About This Topic

Input and Output focuses on the interactive nature of digital systems. Students learn that we give instructions to machines (input) and the machines respond with information or actions (output). This fundamental concept helps Foundation students understand agency over technology, moving them from passive consumers to active users who realise that computers only do what they are told. This aligns with AC9TDEFK01 by exploring how the components of digital systems function.

By identifying buttons, touchscreens, and microphones as input tools, and screens or speakers as output tools, students begin to see the 'conversation' between humans and machines. This topic is particularly effective when students use role play to simulate the input-output loop, acting as the different parts of a system to see how data flows.

Key Questions

1. Differentiate between input and output devices on a computer.
2. Explain the primary function of a keyboard and a mouse.
3. Predict what might happen if a computer's monitor stopped working.

Learning Objectives

• Identify the monitor, keyboard, and mouse as external components of a computer system.
• Explain the basic function of a computer monitor as an output device.
• Explain the basic function of a keyboard and mouse as input devices.
• Classify common computer peripherals as either input or output devices.

Before You Start

Basic Computer Use: Turning On and Off

Why: Students need to be familiar with the physical presence of a computer and how to start it before identifying its parts.

Following Simple Instructions

Why: Identifying components and their functions requires students to listen to and follow teacher directions accurately.

Key Vocabulary

Monitor	A screen that displays visual information from a computer. It shows what the computer is doing and what we are typing or clicking.
Keyboard	A device with many buttons, called keys, used to type letters, numbers, and symbols into a computer. It sends information to the computer.
Mouse	A handheld device used to move a pointer on the computer screen and select items. It sends movement and click information to the computer.
Tower	The main box of a desktop computer that holds all the important parts, like the brain of the computer. It processes information.
Input device	A tool used to send information or instructions into a computer, like a keyboard or mouse.
Output device	A tool used to receive information or see what the computer is doing, like a monitor or speakers.

Watch Out for These Misconceptions

Common Misconception

The computer decides what to do on its own.

What to Teach Instead

Students often think computers have 'feelings' or 'minds'. Use a simulation where the 'computer' student does nothing until they receive a specific input, reinforcing that machines require human instructions to act.

Common Misconception

A touchscreen is only for seeing things.

What to Teach Instead

Because screens are used for viewing, students may forget they are also input devices. Use a hands-on activity where students identify devices that do both, like a tablet, to show that some hardware has dual roles.

Active Learning Ideas

Role Play: The Human Computer

One student acts as the 'User' and gives a command (input), like tapping a friend's shoulder. The second student acts as the 'Computer' and performs a specific action (output), like making a beep sound or jumping.

20 min·Pairs

Inquiry Circle: Input/Output Sort

Provide small groups with a basket of items (physical or cards) like a mouse, a speaker, a printer, and a keyboard. Students work together to sort them into two hoops: 'Things we talk to' (Input) and 'Things that talk to us' (Output).

25 min·Small Groups

Think-Pair-Share: Mystery Buttons

Show an image of an unusual button or icon. Students think about what input it provides and what output they expect to see, then share their predictions with a partner before the teacher reveals the answer.

10 min·Pairs

Real-World Connections

• Librarians use keyboards and mice to help patrons find books and access digital resources on public computers. They need to know how to operate these input devices to search catalogs and guide users.
• Graphic designers use specialized mice and keyboards to create digital art and layouts. They rely on precise input from these devices to manipulate images and text on their monitors.
• Customer service representatives in call centers use keyboards to type customer information and monitors to view account details. They must quickly use input devices to access and update information displayed on their output screens.

Assessment Ideas

Quick Check

Hold up different computer components one by one (monitor, keyboard, mouse, tower). Ask students to point to the component and say its name. Then, ask: 'Does this help us put information IN or get information OUT?'

Exit Ticket

Give each student a small card. Ask them to draw one input device and label it, and draw one output device and label it. Collect the cards to check understanding of basic input/output components.

Discussion Prompt

Ask students: 'Imagine your computer monitor suddenly stopped working. What would happen? Could you still type on the keyboard? Could you still use the mouse? Why or why not?' Listen for explanations connecting the monitor to seeing information.

Frequently Asked Questions

How do I explain 'input' and 'output' to five-year-olds?

Use the analogy of a conversation. Input is when we 'talk' to the computer (using a mouse or finger). Output is when the computer 'talks back' to us (using the screen or sound). Keeping it focused on the exchange of information makes the abstract concept concrete.

What are the best hands-on strategies for teaching input and output?

Physical movement is key. Having students act out being a 'button' that triggers a 'light' (a student holding a yellow card) creates a lived experience of the concept. These simulations help students internalise the cause-and-effect relationship between their actions and the machine's response.

Can we teach this without using actual computers?

Yes, 'unplugged' activities are highly effective. Using cardboard boxes as 'computers' where one student slides a 'drawing' (output) through a slot after another student presses a 'button' (input) perfectly illustrates the process without any screen time.

How does this connect to other subjects?

This connects strongly to Literacy and Science. In Literacy, it mirrors the concept of a sender and receiver in communication. In Science, it relates to the study of light and sound as forms of energy that we can see and hear.