A computer or microchip including a master controlling microprocessor and firmware, network communication components, one or more microprocessors and RAM, and an internal hardware firewall located between a protected portion that is protected by the internal hardware firewall and a network portion. The internal hardware firewall denies access to at least the protected portion of the computer or microchip from the network. The firewall permits unrestricted access by the network to the network portion so that processing operations conducted with the network are executed by microprocessors and RAM in the network portion. The master controlling microprocessor and at least a part or all of the firmware are located in the protected portion of the computer or microchip. The master controlling microprocessor has preemptive control of the microprocessors and RAM in the network portion including erasure of the random access memory (RAM) prior to the use of the network portion.
