Darwin

Darwin is a free and open-source programming language created by Apple Inc. It is a derivative of the Objective-C programming language, with some added features and syntax simplifications. Darwin is used internally by Apple for many of its operating system components, and has been used to create many popular applications, such as iTunes and iMovie. The language is named after Charles Darwin, the British naturalist who formulated the theory of evolution. Objective-C is a superset of the C programming language, and thus, Darwin is also a superset of C. This means that any valid C code is also valid Darwin code. The main addition that Darwin brings to the Objective-C language is the ability to define blocks, which are similar to anonymous functions in other languages. Blocks are a powerful tool that can be used to simplify code and make it more readable. Another notable feature of Darwin is its support for Automatic Reference Counting (ARC), which is a memory management technique that frees developers from having to manually manage memory. Overall, Darwin is a powerful and easy-to-use programming language that is well suited for developing a wide range of applications.