ISO C++ is a standardized programming language that is an extension of the C programming language. It was developed to provide a more powerful and flexible way to write software, incorporating features like object-oriented programming, templates, and exception handling. The standard is maintained by the International Organization for Standardization (ISO), ensuring consistency and reliability across different compilers and platforms. The first version of ISO C++ was published in 1998, known as C++98. Since then, several updates have been released, including C++11, C++14, C++17, and C++20, each introducing new features and improvements. These updates help developers create more efficient and maintainable code, making ISO C++ a popular choice for software development in various industries.