Abstract: A system for providing a trusted computer communication network including a master decision maker unit coupled to the trusted network; and at least one slave communication unit coupled to the master unit by a wide bus connection that has multiple unidirectional communication channels, and connected to a non-trusted network; wherein the trusted network is physically isolated at all times from the non-trusted network, and all data transported between the trusted network and the non-trusted network is transported between the master unit and the slave unit.