• Subject: Re: Proportion of programming languages on AS400
  • From: "System Support Products, Inc." <sspi@xxxxxxxxxxxxx>
  • Date: Sun, 21 Nov 1999 18:48:02 -0500

At 2:23 PM -0500 11/21/99, boothm@earth.goddard.edu wrote:
>I swear that I remember this from way back in the early 1970s.  What
>language were they using then?  Isn't C and C++ much newer than the 1970s?


    I don't know about the early 70's, but the System/34 SSP was 
written on a mainframe in SPL, which looks like a macro language that 
generated S/34 assembler.  Of course, the resulting assembler code 
was also complied on the mainframe.

    The System/38 microfiche I have show that a language named PL/MI 
was used, which generated S/38 MI.  I'm not sure if this was a true 
compiler, or a macro processor.  This work was done on a mainframe as 


    - Lou Forlini
      Software Engineer
      System Support Products, Inc.
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