Qucs is a GPL circuit simulator. And if you want the GUI option, ... and digital logic gates. Qucs also utilizes SPICE-based simulation, which can model various types of circuit behavior, ...

By implementing these gates, Reso is, by definition, Turing complete. Since it’s just a PNG, ... Not so much a circuit simulator as a logic simulator? Report comment. Reply. Gravis says: ...

ChaoLogix’s trick is to put these chaotic states to use. They’ve designed a logic gate circuit that’s capable of behaving like any kind of logic gate – if the input voltages are just right.