Io is a prototype-based, multi-paradigm programming language. It supports object-oriented, procedural, and functional programming paradigms. Io was created in 2002 by Steve Dekorte.
Io is an open source project with a permissive license. The language is dynamically typed and has a simple syntax. Io programs are typically written in a single file and have a .io extension.
Io has a small set of core features, which makes it easy to learn and use. The language has an interactive shell that can be used for experimentation and testing. Io also has a foreign function interface that allows calling code written in other languages.
Io is an efficient language that is well suited for concurrent and parallel programming. The language has built-in support for coroutines and message passing. Io programs can be run on multiple processors and can be distributed across a network.
Io is an excellent choice for scripting, rapid prototyping, and software development. The language is extensible and can be embedded into other applications.