Cyclones having abrasion resistant liners with a system and method for replacing the liners when they worn out due to the destructive nature of the materials being classified in the cyclone. A memory backup and recovery as an optional subsystem of the Distributed Memory Computing system is also disclosed. A signal processing filter is mounted on a signal input section of each actuator and allows only a portion of distributed signal that matches the operation characteristics of the actuator to pass through as a command signal for the actuator. 323 system comprises one or more third party gatekeepers and one or more end points.