The programming paradigm based on the concept of objects is known as object-oriented programming (OOP). In OOP, code is organized into classes and objects, encapsulating data and functionality together. This approach promotes reusability, inheritance, and polymorphism, enabling developers to create modular, maintainable, and scalable software. OOP simplifies complex program structures by mimicking real-world entities, making it easier to design and manage systems. Common languages that utilize this paradigm include Java, C++, and Python.