Squeak

1. <graphics>

["Squeak: A Language for Communicating with Mice", L. Cardelli et al, Comp Graphics 19(3):199-204, July 1985].

See Newsqueak.

2. A Smalltalk implementation and a media authoring tool by members of the original Xerox PARC team which created Smalltalk (Alan Kay, Dan Ingalls, et al). Squeak is an open-source implementation, with a highly portable virtual machine implemented in a subset of Smalltalk (translated into C and compiled by a C compiler of the target platform).

Squeak Home.

SqueakCentral.