BeOS 3 PRO FOR PPC AND INTEL COMPUTERS Requires a Desktop/Tower Mac with a PowerPC 603 processor or a BeBox for the PPC version. It will not run on G3s or later, nor will it run on any PowerBook. This is true of all commercial versions of BeOS. Apple withheld the specs of the G3 and G4 processors and BeOS did not write any drivers for notebook installations.