Atari Pascal

Atari Pascal was developed by MT Microsystems, which was owned by Digital Research. It's similar to MT/PASCAL+ from the same company.^[3] The compiler produces code for a virtual machine, as with UCSD Pascal, instead of generating machine code, but the resulting programs are as much as seven times faster than Apple Pascal.^[3] MT Microsystems wrote Atari Pascal with a planned "super Atari" 8-bit model in mind, one with 128K of RAM and dual-floppy drives (similar to a common configuration of the 1983 Apple IIe).^[3] This machine never materialized, but the software was released because of pressure within Atari, though only through the Atari Program Exchange.

Atari's 1980 in-store demonstration program mentions Pascal as one of the available programming languages, despite Atari Pascal not being released until 1982.

Draper Pascal for the Atari 8-bit computers was released in 1983,^[4] Kyan Pascal in 1986,^[5] and CLSN Pascal in 1989.^[6] Each works with a single floppy drive, a point emphasized in Draper Pascal magazine ads.