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The IBM System p is a high-end line of RISC /UNIX-based servers. It was the successor of the RS/6000 line, and predecessor of the IBM Power Systems server series.
IBM Power Systems is a family of server computers from IBM that are based on its Power processors. It was created in 2008 as a merger of the System p and System i product lines. History
The Power line of microprocessors has been used in IBM's RS/6000, AS/400, pSeries, iSeries, System p, System i, and Power Systems lines of servers and supercomputers. They have also been used in data storage devices and workstations by IBM and by other server manufacturers like Bull and Hitachi.
All IBM POWER5, POWER6, and successor systems may be partitioned. Note that a full system partition may be defined where all resources are consumed by a single partition. System P servers with PowerVM enabled allow LPARs with shared CPUs to delegate their unused cycles into the shared pool. Dedicated processors are not available for sharing.
PowerVM Lx86 was a binary translation layer for IBM's System p servers. It enabled 32-bit x86 Linux binaries to run unmodified on the Power ISA-based hardware.IBM used this feature to migrate x86 Linux servers to the PowerVM virtualized environment; it was supported on all POWER5 and POWER6 hardware as well as BladeCenter JS21 and JS22 systems.
The p-System did not sell very well for the IBM PC, because of a lack of applications and because it was more expensive than the other choices. Previously, IBM had offered the UCSD p-System as an option for IBM Displaywriter, an 8086-based dedicated word processing machine. (The Displaywriter's native operating system had been developed ...
In 2008, IBM consolidated the separate System i and System p product lines (which had mostly identical hardware by that point) [6] into a single product line named IBM Power Systems. [7] [8] The name "AS/400" is sometimes used informally to refer to the IBM i operating system running on modern Power Systems hardware. [9]
CP-40, predecessor to CP-67 on modified IBM System/360 Model 40; CP-67 (IBM, also known as CP/CMS) Conversational Programming System (CPS), an IBM time-sharing system under OS/360; Michigan Terminal System (MTS) [11] (time-sharing system for the IBM S/360-67 and successors) ITS (MIT's Incompatible Timesharing System for the DEC PDP-6 and PDP-10 ...