Bell Labs was doing lots of handwritten character recognition projects. For one of them they wanted to use software running on their DSP32C as fast as it could go. I designed this one to run at 50 MHz using SRAM modules. I kept it small enough to fit in a PC/AT ISA chassis so it could be deployed in their target systems. I built quite a few of these for them. Never heard a complaint. I also learned on this project what an ‘ORB’ was.