Re: Who is Glenn Henry?

I "suspect" no one individual came up with any of those
subjects. Remember, the S/38 took a LOT of it's ideas
from the S/36. The relational data base came from the
big iron guys who had it for years prior to the S/38.
The calls came from the big iron folks. The S/38 was
truly a collection of ideas from everywhere.

CLP was a combo of OCL(S/36) and JCL(MVS) in my opinion.

The S/38 was a very odd bird at the time but really a
big collection of "other" ideas that finally got put
in a single machine.

The MI abstract layer was the first of "new" ideas.
This so called "microcode" was really somthing new at
the time. It later proved to be a VERY good idea.

Of course the S/36 had microcode several years earlier
from it's beginning in the S/34 and even much earlier
with the S/3.(back when the earth's crust was cooling)

Steve Richter wrote:

Who invented command definitions and CL?

Who added externally described files to RPG?

Who added the CALLX to MI which made it possible for an RPG program to call
another CL/RPG/COBOL program with parameters?