Exploring Digital Communication Systems
YEAR 3 (Emerald and Ruby)
Exploring Digital Communication Systems
YEAR 3 (Emerald and Ruby)
Learning Objective
At the end of the lesson you will understand how digital communication systems work and recognise their key parts.
What do you already know about digital communication?
What is Digital Communication?
Digital communication allows us to send information using electronic devices and digital signals like 0s and 1s.
The Sender
The sender is the person or device that creates the message to be sent.
The Encoder
The encoder changes the message into a digital signal, usually made of 0s and 1s.
Transmission Medium
The path the signal travels, such as Wi-Fi, cables, or mobile networks.
The Decoder
The decoder turns the digital signal back into a readable message.
The Receiver
The receiver is the person or device that gets the message.
Examples of Digital Communication
Includes mobile phones, emails, social media apps, video calls, and messaging services.
Write down 3 things you learned in this lesson.
Write down 2 things you want to know more about.
Ask 1 question about something you haven't quite understood yet.