System p
IBM's AIX/Linux-focused server product line, sold on the same underlying POWER processor family as System i but as a separate brand until the 2008 Power Systems unification.
System p was IBM's product name for its UNIX/Linux-oriented server line, running AIX or Linux, sold from roughly 2004 through early 2008 on POWER5 and early POWER6 hardware. It shared processor silicon with System i but was marketed as a distinct product family.
Related Terms
Power Systems
The unified IBM server brand created in April 2008 when System i and System p, previously separate product lines, merged on the POWER6 processor generation.
System i
IBM's server product line running i5/OS (later IBM i), the direct descendant of the AS/400, sold as a separate brand from System p until the 2008 Power Systems unification.
POWER6
IBM's dual-core processor generation shipped starting May 2007, notable for very high clock speeds and hardware decimal floating-point support.