Everything in: Forth Programming Language Overview
The Forth programming language was developed by Chuck Moore during the 1960's and was later formalized as a programming language in 1977, standarized by ANSI in 1994.
The Forth language features interactive execution of commands as well as the ability to compile sequences of commands into threaded code for later execution. It also offers a stand-alone programming environment consisting of a stack oriented interactive incremental interpreter/compiler.
The Forth programming language has been popular as a development language for embedded systems and as a vehicle for instrument control. Processors that use Forth as machine language have been produced. Many high level applications such as CAD systems were written in Forth.
Sources: Forth programming language at Wikipedia, http://www.wikipedia.org/wiki/Forth_programming_language