Ch 1.1 Number systems (FULL) | Ch 1 Data Representation | O Level / IGCSE CS | 2210/0478

👉 Follow for more:   / kurlyatzainematics   🎓 Study tips, live sessions, and fun revision content delivered straight to your feed! One Note P1 https://onedrive.live.com/personal/1b... Annotated PDFs https://drive.google.com/drive/folder... Unannotated PDFs https://drive.google.com/drive/folder... Paper 2 OneNote https://1drv.ms/o/c/1b1616c4cd94fcff/... Paper 2 PDFs https://drive.google.com/drive/folder... 📚 CAIE AS Level Computer Science – Number Systems (1.1) 🔢 In this video, we cover everything you need to know about Number Systems from the CAIE AS Level Computer Science syllabus (9608/9618). This foundational topic introduces how computers represent and process numbers using binary, denary, and hexadecimal systems. 🔍 What You'll Learn: ✅ Why computers use binary to represent data ✅ Understanding the denary, binary, and hexadecimal number systems ✅ Converting between:  • Denary ↔ Binary  • Denary ↔ Hexadecimal  • Binary ↔ Hexadecimal ✅ How and why hexadecimal is used in computing ✅ Binary addition (8-bit) and overflow errors ✅ Performing logical binary shifts (left & right) ✅ Using two’s complement to represent both positive and negative 8-bit binary integers 🧠 Includes step-by-step examples, practical explanations, and exam-focused tips — perfect for students preparing for Paper 1 and Paper 2. 📌 Subscribe for more Computer Science content: Like 👍 | Comment 💬 | Share 🔁 | Subscribe 🔔 Let me know which topic you want covered next! #CAIE #ComputerScience #NumberSystems #Binary #Hexadecimal #TwoComplement #LogicalShift #Overflow #ASLevelCS #9608 #9618 #Zainematics