> -----Original Message-----
> From: IBM Mainframe Discussion List On Behalf Of Mark Jacobs
>
> SPF was installed in my first shop in the 1979 time frame as
> Structured Programming Facility. A couple of years later it
> was split into two parts System Productivity Facility and
> Program Development Facility.
Ah, so.... In 1979 I was still "hookin' airplanes" and my familiarity with
computing systems was limited to ARTS-III and the "Trash-80", and had "heard
of" the IBM 9020s used in the ARTCCs (we had an FDEP device in the tower and
TRACON).
-jc-
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