Area 71 is the unofficial title for Walmart's 125,000-square-foot (11,600 m2) datacenter which is located in Caverna, Missouri, near the Arkansas border. The datacenter has a supposed capacity of over 460 terabytes of data, or 460 trillion bytes of data. Area 71 is built directly on top of bedrock which gives it maximum strength to withstand many natural and man made disasters. It is also self-sufficient with generators and the capability to retain data link with the Wal-Mart network using copper wire, fiber optic cable, or satellite communications. It can also be used to develop trends in purchasing before major events (i.e. natural disasters, holidays) so that Wal-Mart executives can better stock store shelves in anticipation of this event.