Squeak

From Academic Kids

Squeak is a free, open source implementation of the Smalltalk programming language. It is available on many platforms and the programs produced on one platform run bit-identical on the other platforms. The Squeak system includes code for generating a new version of the virtual machine it runs on. It also includes a virtual machine simulator written in itself (Squeak). For this reason it is easily ported.

It comes with an implementation of Morphic, Self's graphical, direct object-manipulation framework. Morphic is an alternative to the traditional "Model View Controller" (MVC) interface of some programming languages such as Smalltalk-80 and Java. Squeak also implements MVC, for programmers who wish to use it. Squeak also has a demonstration Zooming User Interface (ZUI).

Squeak incorporates many of the elements Alan Kay proposed in the Dynabook concept, which he formulated in the 1960s. Kay is an important contributor to the Squeak project. Kay, and many other Squeak contributors also collaborate on the open source Croquet project, which is built on Squeak, and offers a networked, real time, collaborative workspace with 2D and 3D abilities.

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