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🔬 Science - Class 10
Unit 13 · Making audio and audio-visual materials

Digital Signal Presentation

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Science, Grade 10 · Unit 13

Digital Signal

Analogue and digital · Binary digits · Memory units

By the end of this lesson you can

📺

Tell apart antenna, cable and Dish TV

💡

Explain a digital signal with a bulb

🔢

Write binary combinations

💾

Convert memory units from bit to TB

How TV reached our homes

1
Antenna: weak waves through the air
2
Cable TV: modulated signals in a wire
3
Dish TV: digital signals from a satellite

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Presenter notes: Today we find out what form information takes as it travels into our televisions and computers.