A computing system has a graphics processor, a graphics memory, main memory, a bridge, and a central processing unit configured to process floating-point data of a first fixed size. A bi-directional switch is operable to interrupt or limit current flow though the power supply circuit responsive to the change in the state of the overvoltage output. A second reactant is fed to the surface as a second thin film that as it enters the first film, preferably perpendicularly, it is immediately merged therewith along a correspondingly very narrow interaction line by the shear at a rate such as to break up molecular clusters in the films, so that their molecules can aggressively and completely interact by forced interdiffusion. One or more of the nonvolatile memories are set to write inhibition state and the write inhibition state is fixed.