Hardware and Software, Engineered to Work Together Starting more than 30 years ago with Oracle's innovative relational database, the Oracle stack today includes Oracle Enterprise Linux, Oracle VM, Oracle Fusion Middleware, and the largest and most complete set of industry and business applications software on the market. The addition of Sun storage and systems technology makes the Oracle stack complete. Oracle integrates every layer of the IT stack to deliver compelling value, based on high system availability and security, stunning performance, and low TCO. Only Oracle can offer this stack advantage to its customers through deep and seamless integration between the tiers that our competitors cannot match.