APC Computer Applications Code - 165 is the official textbook for Class 9 students following the ICSE curriculum. This comprehensive guide covers fundamental concepts in computer applications, including programming basics, software fundamentals, and practical coding exercises aligned with the ICSE syllabus. Designed for students preparing for board exams and competitive assessments, this book offers clear explanations, worked examples, and practice problems to strengthen conceptual understanding. The structured approach helps learners build confidence in computer science fundamentals. Ideal for classroom use, self-study, and exam preparation. A must-have resource for ICSE Class 9 students aiming for academic excellence in computer applications.