To provide the POS server which can respond immediately against request from local terminals, the POS server 100 according to this invention, which controls dealings of products at a plurality of stores, includes a plurality of control apparatuses 210 connecting with a plurality of local terminals 300...http://www.google.com/patents/US8015066?utm_source=gb-gplus-sharePatent US8015066 - POS system, POS server, local terminal, method of dealing management, and recording medium
