Computer hardware, computer software, and computer programs for the drawing, the design and the production of work pieces, namely, helical components, screws, single screws, feed screws, barrier screws, twin screws, cylindrical screws, conical screws, screw spindle pumps, compressors, pumps, pump components, single lobe rotors, multilobe rotors, cores, and mud motors; computer programs for automated manufacture, drive and control programs for machines, especially for the processing of work pi...