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Parallel Transaction Server

An early CMOS-based mainframe from IBM, specialized for transaction processing. It was later replaced by the Parallel Enterprise Server. See Parallel Enterprise Server.

Parallel Enterprise Server

An earlier family of S/390 (System/390) mainframes from IBM that were air cooled and used CMOS-based microprocessor technology (a CPU on one chip). Introduced in 1994 as the 9672 series, Parallel Enterprise Servers rapidly replaced the earlier water-cooled, bipolar machines that were considerably larger and more power hungry.

Parallel Enterprise Servers employed symmetric multiprocessing (SMP) and up to 32 servers could be tied together in a Parallel Sysplex cluster. See IBM mainframes and Parallel Sysplex.

S/390 G4 Model
IBM's air-cooled, CMOS-based mainframes hardly resembled the huge water-cooled, bipolar models. (Image courtesy of IBM.)

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Parallel Enterprise Serverparallel transfer
parallel interfaceparallel transmission
parallel portparallel vs. serial
parallel printerparallelism
parallel processingparallelizing
Parallel Query ServerParallels
parallel SCSIParallels Desktop
parallel serverParallels Desktop for Mac
parallel softwareParallels Workstation
Parallel Sysplexparameter

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