Figure 4.

Implementation of a DNA NUTM. The physical NUTM consists of 14 paralleling executing processors (one each for both direction of the seven Thue rules) and a mixing vessel. Each processor executes a microprogram that implements a Thue rule in one direction. The resulting transformed DNA sequences are added back to the mixing vessel, mixed, and then distributed to the processors to continue the computation. In this way, all possible combinations of computational steps are executed. The mixing vessel also contains a detection method for recognizing accepting states. Such a system could be wholly automated, and work in continuous cycle.