Explore Analogue and Digital Signals

1. Data Representation
Lesson 10
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2. Starter - Think Pair Share
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3. Objective of the lesson
Explore Analogue and Digital Signals
• All of you will:
• Describe the difference between analogue and digital signals.
• Most of you will:
• Understand why it is easier to remove noise from digital
signals.
• Some of you will:
• Complete the questions in your workbook.
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4. • Play your favourite game on your Xbox, PlayStation or
Mobile phone.
• Look at what data is used inside of your game.
• Make a note of the data that is used and bring that
into class for the next lesson.
• Remember everyone is expected to provide one
answer in class.
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Homework

5. Analogue and Digital Signals
• In a previous lesson we looked at compression
of audio.
• Now we are going to look with more detail
about analogue and digital signals.
• What is a signal?
• Why do we have analogue and digital signals?
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6. Analogue and Digital sound
In your books draw this signal and label it correctly using the descriptors availible
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7. In the United Kingdom, the digital switchover started
on 17 October 2007 and was completed on 24 October
2012. The digital switchover is the name given to the
process by which analogue terrestrial television in the
United Kingdom was replaced with digital terrestrial
television.
Describe the difference between analogue and digital
signals and explain why the UK changed from using
analogue to digital signals.
(6 marks)

9. Plenary
• How does a binary table collect or sample
audio?
• Go into your workbook and answer the
questions.
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