IBM 8100 DPCX

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DPCX (Distributed Processing Control eXecutive) was an operating system for the IBM 8100. IBM hoped it would help their installed base of IBM 3790 customers migrate to the 8100 and the DPPX operating system. It was mainly deployed to support a word processing system, DOSF which was derived from the earlier IBM 3730 word processing system.

Like DPPX, it was written in the PL/S-like PL/DS language. The applications, including much of DOSF, however, were written an interpreted language that was "compiled" using the System/370 assembler macro facility.