[GRLUG] multiple login on Mac

[Adam Tauno Williams]

On Sat, 2012-01-07 at 14:19 -0500, Bob Kline wrote:
> What kind of bandwidth would you
> envision it would take to support a
> remote user with a high resolution
> display? 

Surprisingly little.  I ran multiple remote displays @ 1400x1200 more
than a decade ago [over ethernet].  No problem.  Actually performance
was really good.

> Does that seem to get at why you don't see it available?

No.  I don't see it available because it is not available on the Mac
platform as a result of design.  It was not a design goal for the Mac
OS/X people, and the feature is not available.  

Birds are descendants of dinosaurs,  but a canary is not a sauropod.
The "UNIX heritage" arguments are pragmatically meaningless. And Apple's
OS/X is only a second-cousin of UNIX anyway, it's parent is
NextSTEP/OpenSTEP [which itself was only a UNIX-like OS; heavy on the
"like"].

Display-Postscript is not X-Windows;  NextSTEP and then Mac OS/X
represent some significant divergence from the canonical "UNIX" (if
there ever was such a thing, System V maybe).  The display system
inherited from NextSTEP by OS/X is not multi-user and bound to the
physical display [Mac uses "Quartz" which is really Display-PDF; this
change was primarily due to licensing issues with Adobe].

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