A wide variety of data carriers and read/write heads is available to solve virtually any application problem from vacuum conditions to machine tools with exposure to coolants and lubricants to sterilizing conditions in autoclaves. Special read/write heads also allow reading and writing on the fly. Speeds of 220 m/min for reading and 150 m/min for writing are possible. The system is rounded out by a broad range of different processors. Whether the plastic or metal housing version, these plug-in processors are easy to install.