In order to form a plurality of semiconductor elements over an insulating surface, in one continuous semiconductor layer, an element region serving as a semiconductor element and an element isolation region having a function to electrically isolate element regions from each other by repetition of PN junctions. The managing apparatus includes a storage part storing first software for updating second software of each of the electronic apparatuses and a software transmitting part that transmits the first software to the intermediary apparatus. The ferromagnetic layer has an inner ferromagnetic layer, a coupling layer and an outer ferromagnetic layer, which are stacked in this order on the nonmagnetic layer.