This lecture covers the fundamental concepts of object-oriented programming (OOP) using C++. It begins with an introduction to key principles such as encapsulation, inheritance, and polymorphism. The instructor explains how these concepts are implemented in C++ through practical examples, including class definitions and constructor usage. The lecture also addresses the challenges of multiple inheritance and the importance of virtual functions to resolve ambiguities. Additionally, the instructor discusses the significance of data structures and the role of constructors and destructors in memory management. Throughout the lecture, various coding examples illustrate the application of OOP principles in real-world scenarios, emphasizing the importance of design patterns and best practices in software development. The session concludes with a discussion on the impact of OOP on modern programming practices and its relevance in developing scalable and maintainable software systems.