Every great product begins with some good design ideas and guidelines. The OrCAD suite of EDA design tools started out with the Schematic Design Tool (SDT) in 1984, a modest yet promising beginning no doubt. OrCAD went on to take the PCB design industry by storm after its PCB and VST products made their appearances, giving the average hardware design engineer a powerful EDA tools on an affordable PC platform instead of an expensive workstation.
Thanks to OrCAD founders John Durbetaki, Ken Seymour, and Keith Seymour for their pioneering vision and daring venture into unchartered waters. Thirty years later, there is now a thriving Old Dos OrCAD community that makes these amazing tools freely available to everyone, complete with original user and reference manuals. All you need is a virtual PC installed that runs on MS-DOS and you're good to go!