Legacy
The single-user System/32 had a very different, 16-bit word oriented processor. It emulated the System/3 instruction set in software (rather slowly).
The later IBM System/34 and IBM System/36 partly inherited the architecture from System/32. They had two processors: a Control Storage Processor (CSP), same as in System/32, which handled most supervisor and input/output operations, and a Main Storage Processor (MSP), a re-implementation of the System/3 model 15 processor, used to run System/3 applications. So, those systems may be thought of as System/32 with added "hardware emulation" of System/3.
Although the IBM System/38 and its successor the AS/400 and iSeries filled the same market niche, they used a radically different architecture, based on the failed IBM Future Systems project.
Read more about this topic: IBM System/3
Famous quotes containing the word legacy:
“What is popularly called fame is nothing but an empty name and a legacy from paganism.”
—Desiderius Erasmus (c. 1466–1536)