A status register within a non-volatile semiconductor memory device chip is provided with a bit indicating whether an access is possible from the external side of the chip or not and a controller for instructing the write process to the non-volatile semiconductor device issues again a write process instruction to the same area depending on the condition of the bit of the status register. The connector includes an upper planar member and a lower planar member connected by a rigid webbing. The checksum function may be configured to generate a checksum value for the signal between assertions of the start signal and the stop signal and generate a result signal in response to comparing the checksum value with an expected value. Liquid is forced through a flow path by controlling an outlet velocity u0 that is an initial value of liquid velocity u according to equation in which supply pressure p of liquid is varied by a numerically controlled device 2Trc+2Tcosx-p+gtsin-u2trc=0. The weight percent of metakaolin in the calcined microspheres is greater than the calcined aluminum source content.