A disc prosthesis comprises a first prosthetic device comprising a first upper housing and a first lower housing between which at least one first disc element is movably interposed. A laterally projecting arm engages a fusebody anywhere along the length thereof an guides the fusebody into the fusebody-receiving notch in the base member. This optimizes processing of the access device and the semiconductor memory card independent of differences in characteristics of semiconductor memory cards and management methods used, realizing high-rate access from the access device to a semiconductor memory card. The electrodes and separator are stacked into a laminated structure. Advantageously, said induction heating devices have external dimensions which are the same as traditional radiant heating bodies and thus can easily be used in lieu of said traditional radiant heating bodies when constructing said hob.