The Atari Pascal Language System (usually shortened to Atari Pascal) is a version of the Pascal programming language released by Atari, Inc. for the Atari 8-bit family of home computers in March 1982.Atari Pascal was published through the Atari Program Exchange as unsupported software, instead of in Atari's official product line. It required two disk drives, which greatly limited its potential audience. It shipped with a 161-page manual.
Atari Pascal was developed by MT Microsystems, which was owned by Digital Research. It's similar to MT/PASCAL+ from the same company. The compiler produces code for a virtual machine, as with UCSD Pascal, instead of generating machine code.