A method of controlling a semiconductor memory card system including a host device incorporating a semiconductor memory card and communicating information with a user of the host device to warn the imminent end of the life of the memory card in the system is provided. The data packet is marked to indicate the relative importance of the content thereof within the predetermined class-of-service. Each section can have a first surface for primarily receiving the fluid and orientated, independently, about 5\u2014about 85\xb0 with respect to horizontal. A conductor pin 43 is inserted into each boss 4222 along the axial direction.