🔢 9th Class Computer Chapter 2 – Data and Number Systems | Solved Notes PDF by Mujahid Hussain
📊 Chapter Overview – Data and Number Systems
This chapter explains how data is represented in computers using number systems. You will learn about binary, decimal, octal, and hexadecimal systems, as well as conversions between them. These notes are designed in easy English to help you understand complex topics quickly.
📘 What’s Included in These Notes?
- ✅ Data types: numeric & non-numeric
- 🔣 Number systems: Binary, Decimal, Octal, Hexadecimal
- 🔄 Conversions between number systems
- 🧮 Binary arithmetic: addition & subtraction
- 📝 Solved MCQs, short and long questions
🎓 Study Pool Verified
These notes are verified by Study Pool and reviewed by M. Usman (MSc Physics). Carefully written by Mujahid Hussain to help weak students and make concepts easy for teachers to explain.
📥 Download Chapter 2 PDF – Data and Number Systems
❗ Why Use These Notes?
📢 These notes will save your time and make your exam preparation easier. Simple language, solved questions, and proper formatting – all in one PDF!
🔗 Related Posts:
- 💻 Chapter 1: Introduction to Computer System – Notes
- 💻Class 9 Chapter 3 – Logic-Gates-Boolean-Algebra
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