DEC RSX-11D and its COBOL compiler?

[John Forecast]

> On May 29, 2018, at 1:04 PM, Paul Koning <paulkoning at comcast.net> wrote:
> 
> 
> 
>> On May 29, 2018, at 10:30 AM, John Forecast via cctalk <cctalk at classiccmp.org> wrote:
>> 
>> 
>>> On May 29, 2018, at 3:30 AM, Nigel Williams via cctalk <cctalk at classiccmp.org> wrote:
>>> 
>>> On Tue, May 29, 2018 at 1:27 AM, Al Kossow via cctalk
>>> <cctalk at classiccmp.org> wrote:
>>>> I have 11D on bitsavers.
>>> 
>>> this is actually RSX-11D? http://bitsavers.org/bits/DEC/pdp11/magtapes/ias/
>> 
>> 	Yes. The two V3.4A tapes will allow you to build either RSX-11D or IAS. 
> 
> Wow, I did not know that.  It certainly confirms that IAS is just a slightly hacked RSX-11/D...
> 
> 	paul
> 
> 
 	Probably more that just “slightly” hacked but certainly not a completely new design. The scheduler was completely reworked
	along with the swapping mechanisms. When I first saw it, there were 2 user interfaces; SCI> the System Control Interface for
	management operations and PDS> Program Development System for normal users. Before release, both were collapsed
	into the, now familiar, DCL> interface. Just remapping DCL commands onto the standard utilities was a major part of the work.

	  John.