The document discusses the benefits and applications of object-oriented programming (OOP). It notes that OOP allows for partitioning programs into objects, modeling real-world objects, and increased productivity. Specific benefits mentioned include reduced development time, increased security through data hiding, improved interfaces for message communication, extensibility through inheritance, and avoided data redundancy. Applications discussed include real-time systems, simulation and modeling, hypertext/hypermedia, artificial intelligence, neural networks, parallel programming, and office automation systems. The document also provides a brief definition of C++ as an object-oriented language developed in the 1980s at Bell Labs, and defines expressions in programming languages.