Abstract: A system and a device for enabling a plurality of hardware memory components to be installed on a computational device, in which the hardware components are isolated from each other and/or from the remainder of the computational device. Such “insulation” can optionally be used in order to provide security for the information stored on the hardware memory component. For example, one such component could optionally have access blocked when the computational device is connected to a network such as the Internet, in order to prevent an external, unauthorized user from gaining access to the information stored on such a hardware memory component. One possible application of the present invention is for security of operation of a computational device.

Abstract: A method of producing silicon carbide (SiC), by introducing into the interior of a furnace a quantity of relatively pure elemental silicon and a quantity of elemental carbon; subjecting the interior of the furnace to a vacuum; and heating the silicon and carbon to a temperature of 1500° C.-2200° C. to vaporize the silicon and to react it with the carbon to produce silicon carbide. Several embodiments are described for producing a heating or lighting element and a high temperature sensor, respectively, in which the carbon is in the form of a shaped body made of a mixture of finely-divided particles of carbon in a binder, and the silicon is in the form of finely-divided particles applied to the outer surface of the shaped body. A further embodiment is described for producing silicon carbide powder, in which the carbon and silicon are each in the form of finely-divided particles, and are physically separated from each other by a graphite sheet permeable to silicon vapor.