How do we use digital devices? | Computing for Year 2 PDF Download

What is a Digital Device?

A digital device is a tool designed to perform specific tasks, often containing a small computer inside. These devices require computer programs to function effectively.

Examples of Digital Devices

Here are some common digital devices:

• Smartphones
• Laptops
• Tablets
• Smartwatches

How Digital Devices Work

Digital devices operate based on instructions provided to them. Let's consider the example of listening to music on a mobile phone:

Listening to Music on a Mobile Phone

• When we want to play music on a mobile phone, we interact with a music app. To start the music, we typically tap a play button.
• After tapping the play button, the music begins playing through the phone's speakers or headphones.

Interacting with Digital Devices

Users interact with digital devices in various ways.
For instance:

• Touchscreens: Users can tap, swipe, or pinch to interact with devices.
• Voice Commands: Devices like smart speakers respond to voice instructions.
• Keyboards and Mice: Input devices for computers and laptops.

Making a Remote Control Toy Bus Move

• We aim to set our remote control toy bus in motion by providing instructions for the wheels to start turning.
• Initiate movement by pressing the GO button on the remote control.

After Pressing the GO Button

• Upon pressing the GO button, the wheels of the bus will begin to rotate, propelling the bus along the floor.

Writing a Story on a Computer

• Our objective is to compose a story on a computer by specifying the words we wish to display on the screen.
• Create the narrative by typing the letter keys in the correct sequence on the keyboard.

Subsequent Action

• Once the letter keys are pressed on the keyboard, the screen will exhibit the words, shaping our story.

Key Definitions

Here are the explanations for some essential terms:

• Computer: A device capable of executing instructions stored in its memory.
• Digital Device: A machine containing a computer internally.
• Computer Program: A series of instructions understandable by a computer.
• Screen: The display area of a computer where images or text are visible.
• Speakers: Equipment used for playing sounds or music audibly.
• Headphones: Tools for private sound listening.
• Remote Control Handset: An electronic device controlling another device from a short range.
• Button: An object pressed to trigger an action.
• Keyboard: The part of a device with letter keys for typing.