Page 5 - CA_Blue( J )_Class9
P. 5
PREFACE
Dear Students,
It is with great passion that I present this book, designed specifically to meet the requirements
of the ICSE syllabus for Classes 9 and 10. Written more than four years ago, this book has
stood the test of time as a reliable resource, offering clear and concise explanations of the
topics prescribed in the ICSE curriculum.
The world of computers is ever-changing, yet its foundational concepts remain timeless.
This book has been designed to provide a strong grounding in those fundamentals while
addressing every aspect of the syllabus in a structured and easy manner. This book is your
trusted guide.
Why is this book the right choice for you?
• Comprehensive Coverage of the ICSE Syllabus: Each chapter has been precisely aligned
with the ICSE curriculum, ensuring that every topic you need to learn is covered in detail.
• Clear Conceptual Understanding: Explanations are simple, precise, and supplemented
with diagrams, flowcharts, and examples, making complex topics easy to grasp.
• Practical Learning: The book includes numerous coding exercises, real-world scenarios,
and problem-solving activities to bridge theory and practice.
• Java Programming Made Simple: A step-by-step approach to learning Java, with plenty
of sample programs, ensures you master this essential skill.
• Exam-Oriented Approach: Special sections focus on solving past ICSE question papers,
along with tips and techniques for scoring well in your exams.
Beyond academic preparation, this book emphasizes computational thinking—a skill critical
not only for programming but also for solving problems in everyday life. With topics ranging
from algorithms and programming to databases and data visualization, this book aims to
make learning engaging, interactive, and relevant to the modern digital world.
Although the book was written several years ago, it remains relevant because it focuses
on the core principles of computer science, which continue to strengthen even the latest
advancements in technology.
I am deeply thankful to the educators, reviewers, and students whose visions and inspiration
have shaped this book. It is my sincere hope that this resource becomes not just a guide for
academic excellence but also a source of inspiration to explore and innovate in the field of
computer science.
I would also like to thank the Almighty, without whose grace I would not be able to help the
students. A huge amount of gratitude to my family and the Orange Education team for their
constant support and help.
Let this book be your stepping stone into a future filled with exciting possibilities.
Wishing you the best in your learning journey,
— Author
Partha Saha
M.Sc. (Computer Science), B.Ed.

