The present invention proposes a disk array apparatus that can dramatically enhance its operability. 5 wt-% SiOH functional groups and a polydiorganosiloxane polyurea copolymer. Preferably, the glue applicator roll uses a regenerative drive and the target drive current command in a feedback control system to cause the gap to be adjusted to achieve the desired slight compression of the web flutes and to maintain the glue applicator roll under speed. The one end of the apparatus body has an escape portion that is formed by undercutting it in a manner such that the antenna portion of the IC card is exposed when the IC card is inserted into the card storage portion. Another address line enables the protection mechanism to generate a hash of the data. So configured, the touch device screen is able to reduce the likelihood of inadvertent activation for certain functions on the device.