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IBM Power Systems is IBM’s line of server hardware that is based on the Power Architecture technology. Power Architecture broadly describes a whole range of processor architecture, software, toolchain, community and end-user appliances, and many different companies, including IBM, develop and manufacture products based on the Power Architecture. The governing body for Power Architecture is Power.org, now the OpenPOWER Foundation, founded in 2004 by IBM and fifteen other companies to establish open standards, guidelines and certifications for it.

IBM Power Systems servers are designed to support applications that drive business innovation and growth, such as advanced analytics, machine learning and artificial intelligence. They are famous for their ability to handle data-intensive workloads with superior core performance and memory bandwidth. This makes them attractive to businesses who are undergoing a digital transformation, expanding their operations, or modernizing their data centers. IBM Power Systems enterprise servers are particularly well suited to support private cloud deployment, and the private and hybrid cloud infrastructures that are capable of supporting a large enterprise.

IBM was an early promoter of the Linux operating system, and Linux has run on IBM Power Systems since 2001. SUSE Linux Enterprise Server for POWER was the first Linux distribution optimized for IBM Power Systems, and the current version supports IBM POWER8 and POWER9 processors. In 2017, IBM Power Systems — including OpenPOWER servers, Linux on Power Systems, and IBM Power Systems for SAP HANA — helped IBM outperform the market growth of the total Linux server market by 300%.