Procyon Common Lisp

A Common Lisp implementation developed by British company Procyon Research Ltd. in the latter half of the 80's. It ran on DOS running on 386 processors or higher, on OS/2 and Macintosh, with a Microsoft Windows version showing up a little later.

The product line was apparently not profitable and was sold to Scientia Ltd. in 1991 but they had been selling classroom scheduling software written in Procyon Lisp for a couple of years, the rights to the Windows version were sold to Franz Inc. in mid 1992 for US$ 275k who renamed the product Allegro CL\PC and have been developing it ever since, but Scientia continued selling the Mac, DOS and OS/2 versions for a few years afterward.

Licence

Discontinued commercial software

Publisher

• Procyon Research Ltd.
• Scientia Ltd.