A data storage includes multiple disk units accessible to multiple processorsservers. In order to permit space-saving configurations of a fixation device that can be introduced and operated through small orifices in the body, a cam body is provided which is mounted on the fixation device so as to be able to rotate next to the clamping jaws in the direction of tightening and which, when rotated, pushes one clamping jaw toward the other. Fold regions are located along two spaced-apart portions of edge. Further, the devices may be highly flexible and electrically conductive, while also having low impedance and high storage charge capacity. A process for preparing a lithographic printing member is also disclosed. The apparatus comprises a mail reception section for receiving an electronic mail via a network, and a program data extraction section that extracts program data from said electronic mail.