Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!decwrl!bacchus.pa.dec.com!granite.pa.dec.com!mwm From: mwm@raven.pa.dec.com (Mike (Real Amigas have keyboard garages) Meyer) Newsgroups: comp.sys.amiga Subject: Re: (Commodore read this !!!) A few enhancements to the Amiga 3000 Message-ID: Date: 10 Aug 90 19:40:26 GMT References: <1280@gandalf.littlei.UUCP> <18165@ultima.cs.uts.oz> <27086@nigel.ee.udel.edu> <195@decvax.decvax.dec.com.UUCP> Sender: news@wrl.dec.com (News) Organization: Missionaria Phonibalonica Lines: 49 In-Reply-To: dcj@pmax4.zk3.dec.com's message of 10 Aug 90 18:28:39 GMT In article <195@decvax.decvax.dec.com.UUCP> dcj@pmax4.zk3.dec.com (Dave Jedlinsky OSEM) writes: |> >>Make sure you try it on a SPARCStation runing X/NeWS 2.0. You'll be |> >PLease, inform me! When did X-Windows come out as a postscript display? Shipped this summer from DEC. And only available from DEC, for DEC platforms. |> X/NeWS is X-Windows implemented within NeWS, not NeWS (or any other postscript |> display system) implemented within X. I find it impressive that NeWS is |> flexible enough to implement X, regardless of speed. -- Darren DECwindows 4.0 is X-Windows with Display Postscript implemented as an extension within X. I find it impressive that X is flexible enough to implement Display Postscript, including speed. Of course, running DEC's X server instead of the X11R4 server means it runs slower, and chews up much more memory. And the Display Postscript isn't really implemented in X, so much as embedded in it. If you want to use colors, you also have to disable the default of allocating colors for Display Postscript when the server starts. DPS on a DECstation 3100 is fast enough for most common operations, I don't know how it stacks up against a SPARCStation. For some reason, most DECWindows applications don't use the embedded Display Postscript. The only thing I've found that gets unhappy running on a stock X11R4 server is the postscript previewer. Ergo, watching DECWindows run on that server doesn't really tell you how fast the Display Postscript is. This should be contrasted with NeWS, wherein the windowing system is largely written in Postscript, so almost everything you do involves invoking Postscript. The resulting system provides much more user flexibility than X. Generic comment: X is big and ugly. DECWindows is just enough different from X to be painful, but mostly bigger and uglier. BTW, a real disclaimer: though many of my fellow employees may agree with these opinions, they do not represent DEC's opinion in any way.