The invention concerns an automated vending system which uses a commercially available, multi-axis robot arm to retrieve an article from a storage location and deliver the article to a customer. The invention includes a control system which interacts with at least three entities: (a) the customers; (b) credit card agencies, as by verifying the customer's credit situation and by performing daily credit reconciliations; and (c) the control system of the robot arm, as by informing the robot which articles to retrieve. The invention includes a display which provides to the customer a catalog of articles, and allows the customer to choose an article for purchase from the catalog. The invention allows remote control of the vending system, by telephone, whereby the system can be shut down in case of malfunction. If the vending system is used to sell music recordings, the invention allows the customer to hear samples of selected recordings available for sale.