FIG. 4 shows the ordering number database HMDB according to Exemplary Embodiment 1. As shown in FIG. 4, the ordering number database HMDB includes a “user name” and an “ordering number HM”. The ordering number HM is a number which should be ordered in order to restore the number of the business cards MSt held by the user US to the aforementioned “100” when the remaining number ZM (shown in FIG. 3) has become smaller than a remaining number limit ZGM “30” (shown in FIG. 5) which will be described later. Therefore, when, for example, the remaining number ZM of the business cards MSt of the user US is “26”, the ordering number HM of business cards MSt is intrinsically “74”.

<Remaining Number Limit Information>

FIG. 5 shows the remaining number limit information ZGMJ according to Exemplary Embodiment 1. The remaining number limit information ZGMJ indicates a fact that the ordering number HM (shown in FIG. 4) of the business cards MSt should be ordered when the remaining number ZM (shown in FIG. 3) has become smaller than the remaining number limit ZGM (shown in FIG. 5). The remaining number limit ZGM is, for example, “30”, as shown in FIG. 5.

<Ordering Standard Number Information>