This lecture introduces the concept of object-oriented programming in C++, covering the transition from procedural programming, the basics of objects, encapsulation, abstraction, and the importance of encapsulation and abstraction. It explains the principles of encapsulation and abstraction, the benefits of grouping data and methods, and the levels of perception of objects. The lecture also discusses the interface of objects, the reasons for abstracting and encapsulating, and the relationship between classes, instances, types, and variables in object-oriented programming.