model-of-computation public under concept 1247 List Picture As a command %3 n0 model-of-computation n2 finite-automaton n0->n2 n3 actor-model n0->n3 n4 lambda-calculus n0->n4 n5 osi-model n0->n5 n6 turing-machine n0->n6 n1 concept n1->n0