A system is provided for managing the delivery of online advertisements across inventory units of an online advertising campaign. The magnetic field can be generated by one or more electromagnets in proximity to or contact with the flame. Thus, automatic, efficient, high-speed, and high-integration optical communication and electric communication between multi-chips can be completed at the same time by using the opto-bus module which provides low-speed electric communication while manually maintaining solid optical coupling. The program module is then terminated and restarted. The merchant receives an authorization confirmation from the authorization computer upon authentication of the identity of the cardholder.