PowerPatch requires an IBM or compatible computer running 
Windows 3.1 (PowerPatch may or may not run on earlier versions 
of Windows) and a MPU-401 or compatible MIDI interface.  Also 
required; two MIDI cables, and a mouse is a big help.

PowerPatch uses a single computer screen to graphically represent 
a RP-1 algorithm.  Algorithm effects and parameters are grouped 
by effect type and are arranged in roughly the same order as they 
appear when scrolling through them on the RP-1.