We propose a computational device based on evolutionary rules and communication within a network, similar to that introduced in [4], called network of evolutionary processors. An NP-complete problem is solved by networks of evolutionary processors of linear size in linear time. Some furher directions of research are finally discussed. ∗Research supported by the Direcci´on General de Ense˜nanza Superior e Investigaci´on Cientifica, SB 97–00110508 1