z/OS overview
z/OS, the operating system for the zSeries hardware, is the next generation of the OS/390 operating system. z/OS is based on 64-bit z/Architecture. The robustness of z/OS powers the most advanced features of the IBM eServer99 zSeries 990 (z990), 900 (z900), and 800 (z800) servers, enabling you to manage unpredictable e-business workloads. Highly secure, scalable, and open, z/OS offers high performance that supports a diverse application execution environment. 
The tight integration that DB2 has with the zSeries architecture and the z/OS environment creates a synergy that allows DB2 to exploit advanced z/OS function. DB2 gains a tremendous ...
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