Etoys (programming language)

Etoys is a child-friendly computer environment and an object-oriented, prototype-based programming language built for education. It is a media-rich authoring environment with a scripted object model in which learners build programmable virtual objects that behave on the screen, working with vector graphics, video, spatial audio and MIDI. Etoys was developed under the direction of Alan Kay at Disney to support constructionist learning, drawing on Seymour Papert and the Logo language, on Smalltalk and on work done at Xerox PARC. Its original and most widely used version is based on Squeak, a dialect of Smalltalk; other versions use Squeak's Tweak environment or Python, in a version named PataPata. Etoys was preinstalled on the One Laptop per Child XO-1 laptops, is free and open source, and was a major influence on the Scratch environment.