Class 11 || Number System || CBSE || Chapter 2

"Confused by Binary, Octal, and Hexadecimal? Join this FREE live session and make Number System easy and enjoyable!"

Class 11 || Number System || CBSE  || Chapter 2

• Decimal, Binary, Octal, and Hexadecimal Number Systems
• Conversion between number systems (including fractional numbers)
• Encoding Schemes: ASCII, Unicode, and ISCII 

FREE MASTER CLASS – Class XI Computer Science

Topic: Number System & Encoding Schemes

Duration: 90 Minutes

1. Introduction (10 min)

• What is a Number System?
• Why computers use Binary?
• Real-life examples (mobile, ATM, computer memory)

2. Types of Number Systems (20 min)

• Decimal (Base 10)
• Binary (Base 2)
• Octal (Base 8)
• Hexadecimal (Base 16)

3. Number System Conversion (30 min)

• Decimal ↔ Binary
• Binary ↔ Octal
• Binary ↔ Hexadecimal
• Decimal ↔ Octal & Hexadecimal
• Fractional Number Conversion

4. Encoding Schemes (15 min)

• ASCII
• Unicode
• ISCII

Why encoding is needed in computers

5. Practice Session (10 min)

• 10 MCQs
• 3 Numerical Conversion Questions

6. Doubt Session & Course Overview (5 min)

• Free Resources

• 📄 PDF Notes
• 📝 Practice Worksheet
• ❓MCQ Quiz
• 🎁 Bonus Assignment

This master class is fully aligned with the Class XI Computer Science syllabus for the Encoding Schemes and Number System chapter.