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Lesson 4
How the internet works
📖 Lesson
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🎯 Quiz — pick the translation
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✅ Lesson done
The internet is a postal service for computers: a page is cut into packets, flies through routers over cables and air, and is reassembled on your screen.
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Router
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Server
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Wi-Fi
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Data packet
☁️
Cloud
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Browser
🌊 99% of the internet travels through undersea cables on the ocean floor — not satellites!
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Test yourself!
Quiz — pick the translation →
🖨 Worksheet
Practice the topic with the trainer — like after class