0️⃣
Lesson 2
Binary code: the computer language
📖 Lesson
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🎯 Quiz — pick the translation
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✅ Lesson done
The computer only knows two signs: 0 and 1 — power off or on. Letters, pictures, music — inside they are all long chains of zeros and ones.
0
Bit 0 — off
1
Bit 1 — on
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Byte = 8 bits
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Binary system
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Processor
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Display
💾 The letter "A" inside the computer is 01000001. A whole movie — billions of such chains!
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Test yourself!
Quiz — pick the translation →
🖨 Worksheet
Practice the topic with the trainer — like after class