A cartridge is constituted by a plurality of absorbing materials for retaining liquid, an interface formed by press-contact between opposing surfaces of the absorbing materials, an introducing portion for supplying the liquid out of the absorbing materials, and a filter provided at an end portion of the introducing portion. The broadcast system includes an operation center that broadcasts meta-data to a plurality of client systems. In another embodiment, a flash memory device comprises a memory array, a controller and a register.