http://www.allegrosys.com/index.html
This Allegro homepage provides product information about Allegro, a 32-bit multi-tasking operating system for 386, 486, and Pentium computers that provides network support; Parley, a customizable BBS system that can support thousands of simultaneous users; and Apprehend, a system which provides support for production environments, linking thousands of data collection and process control devices. This site includes product and system configuration information, testimonials, price information, and diagrams.