Processing is a free, open source programming language and development library for the visual arts. It is a software sketchbook, a way to visually learn programming fundamentals, and a tool for creating finished professional work, including mapping networks, textual analysis and producing visualizations. It runs under Windows, OSX and Linux environments, and can export graphics and applets in a variety of formats.

Features:

- C, shell scripting (sh), AWK, and sed

- Powerful text processing facilities

- Flexibility and adaptability

-Support for multiple programming paradigms

-Reference counting memory management

Scratch is a programming language, designed for children, for creating interactive stories, animations, games, music and art and publishing them online.

A general-purpose high-level programming language that places an emphasis upon code readability. Python supports a number of development models, including object oriented, imperative, and functional design. It provides automatic memory management and a fully dynamic type system.

Features:

Very clear, readable syntax

Strong introspection capabilities

Intuitive object orientation

Natural expression of procedural code

Full modularity, supporting hierarchical packages

Exception-based error handling

Very high level dynamic data types

Extensive standard libraries and third party modules for virtually every task

Extensions and modules easily written in C, C++ (or Java for Jython, or .NET languages for IronPython)

Embeddable within applications as a scripting interface