The date computer is a small aid program for the date calculation of the next physician attendance in connection with the ordered tablet quantity. As resulto ne receives the latest date for the next physician attendance. Today is the 07.03.2001. If from a 98-piece packing three tablets are taken daily, when is then this packing used up? With the date calculator no problem. The program was inspired by falsely determined physician dates. Suddenly the tablets did not long until the next date. The physician was in vacation and then stress starts. For physicians, pharmacists and private planning.