It is an object to provide memory and a semiconductor device in which falsification of data written thereinto is prevented. The circuit includes a programmed controller having an input as the control input and a voltage sensor circuit connected to sense the voltage between the power switches and apply a voltage signal to a controller input. The category creating apparatus extracts, from the video image information in the received music, character information and decomposes the extracted character information into words. The indicators of one item relate to the availability, the intrusion, the vulnerability and the compliance to a security policy. The assembly may be placed over a safety cone and is held secure by gravity and the wedge of the cone angle.