Like Comparing Nets, the Computing Nets use devices to transform input into output.
While Comparing Nets use Comparators, Computing Nets are more generic.
Computing Nets use Transformers, which transform input sequences into output sequences.
When joined by wires, these transformers form Computing Nets.
For example we can have Transformer which can compute f1(x,y) = x + y for (x,y) of given domain, or another transformer which can multiply f2(x,y) = x · y for (x,y) of given domain.
Simple function transformers let complex functions be efficiently computed, with enough of Transformers connected by wires properly.
Stitie Space can be used to model such Computing Nets.
See also: Stitie Machine 1.1 'Sunsail', Comparing Net.