🚀 go-pugleaf

The confusion over where Simula originates should not
arise, since it is well documented in the conference on the history
of programming languages.  It is definitely a product of the
Norwegian Computer Center (NCC) in Oslo. 
The principle designers were O.-J. Dahl and K. Nygaard.

For many years the NCC were the distributers of Simula implementations
(and the authors of many).  The Swedish connection is that the DEC-10
implementation (one of the best, and it was free for many years)
was written by a Swedish Defence research establishment.  Jacob Palme
was heavily involved there.

I don't know for certain the origin of ZYQ in the error messages.
I suspect that it may be restricted to a small subset of implementations
(IBM 360/370 ?), and was chosen so that the error message identifiers
would not clash with any of IBM's IER... etc.

As always, the best source of information is the Simula newsletter,
a free subscription being available from the Association of
Simula Users.
	ASU Secretariat
	Simula a.s.
	Postbox 4403, Torshov
	0402 Oslo 4
	Norway
-- 
Peter King, Computer Science Department	JANET:	pjbk@uk.ac.hw.cs
  Heriot-Watt University		ARPA:	pjbk@cs.hw.ac.uk
  79 Grassmarket, Edinburgh EH1 2HJ	or	pjbk%cs.hw.ac.uk@ucl-cs
Phone: (+44) 31 225 6465 Ext. 555	UUCP:	..!ukc!cs.hw.ac.uk!pjbk