Abstract: A relational processor having multiple inputs for receiving and processing parallel words. The relational processor comprises one or more input subsections for converting parallel input data to serial output data. Each of the one or more subsections has a parallel input for receiving the parallel input data and a respective subsection output for outputting the serial output data. A plurality of Boolean processors process the serial output data into processed output data, which plurality of Boolean processors are each operatively connected to the subsection outputs of the one or more input subsections to receive the serial output data. The processed output data is routed with a data routing system which is connected to a processor output of each of the plurality of Boolean processors to route data therefrom to one or more destination Circuits. The relational processor processes the input data in a single pass.