Power Systems

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Power Systems

IBM's midrange computer family, which uses IBM's POWER CPUs. In 2008, IBM merged its System i and System p hardware into the Power Systems brand. It was an easy transition as both System i business computers and System p scientific computers were based on POWER chips, with applications differentiated by operating system. Business applications run under the IBM i operating system, and scientific applications run under AIX (Unix) or Linux. See POWER CPU.

The business side of Power Systems stems from the AS/400 in 1988 for which thousands of applications have been written over the years. Its unique feature was a relational database that came with the OS/400 operating system, and applications from earlier IBM systems either ran intact or with recompilation (see System/38 and System/36).

AS/400-> iSeries-> i5-> System i-> Power Systems
In 1994, AS/400 models were introduced with the POWER CPUs, and in 2000 IBM renamed the AS/400 the "iSeries." In 2004, the i5 was introduced with the POWER5 CPU and a wide range of models, including systems with 64 CPUs and 2TB of memory. The OS/400 operating system was renamed i5/OS (later IBM i). Subsequent models were branded "System i."

An Early AS/400
The AS/400 was the original hardware line that evolved into Power Systems two decades later. Thousands of applications have been written for it. (Image courtesy of IBM.)

The computation-intensive side of Power Systems evolved from the RS/6000 workstation in 1990. The RS/6000 was the first to use IBM's POWER CPU, and workstations and servers ran IBM's AIX (Unix) operating system. The RS/6000 originally used IBM's Micro Channel bus but later adopted the industry standard PCI bus.

RS/6000-> pSeries-> p5-> System p-> Power Systems
In 1994, RS/6000 models were introduced with the POWER CPUs, and in 2000 IBM renamed the RS/6000 the "pSeries." In 2004, the p5 was introduced with the POWER5 CPU and a wide range of models, including rack mounted servers up to 64-way systems with 2TB of memory. Subsequent models were branded "System p."

An Early RS/6000
This was one of many RS/6000s, which have been used in scientific and industrial applications. (Image courtesy of IBM.)
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References in periodicals archive ?
ARMONK, N.Y., June 17, 2019 /PRNewswire/ -- IBM (NYSE: IBM) today announced that IBM POWER9-based IBM Power Systems Virtual Servers are now available in the IBM Cloud.
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20 February 2019 - US-based off-highway products distributor Palmer Johnson Power Systems has acquired Mill Log Equipment Co., Inc.
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PW Power Systems, formerly Pratt and Whitney Power Systems, was acquired by Mitsubishi Heavy Industries, Ltd., in May 2013 and changed its name to PW Power Systems, Inc.
This inclusive study presents evaluation of high voltage levels to find an optimum value for less contingency and system stability in power system by discussing all power related parameters.
"Our customer gets one of the most efficient and reliable gas-fired power plants available on the worldwide market", emphasized Yasuo Fujitani, Senior Executive Vice President of Mitsubishi Hitachi Power Systems Ltd.
Battery Power Systems is a full service and sales company supplying industrial batteries and chargers to industrial and commercial customers.
However, to the best of authors' knowledge, there has been little discussion about consumer perception towards renewable energy; in particular, on residential solar power systems install intention in Malaysia.
The electric power industry is one of only a handful couple of enterprises where Cloud computing has not yet discovered much selection, despite the fact that electric power utilities depend vigorously on interchanges and calculation to arrange, work and investigate Power Systems. In this paper it has been investigated the purposes behind this wonder.

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