akemiiwaya — 2014-03-13T16:00:50-04:00 — #1
Originally published at: http://www.howtogeek.com/184667/how-are-kde-apps-able-to-run-under-gnome/
The visual differences between the GNOME and KDE desktop environments are easy to see, so how is it possible to run an app from one under the other without problems? Today’s SuperUser Q&A post has the answer.
wilsontp — 2014-03-13T16:17:11-04:00 — #2
Graphics and the desktop environment are things that Unix does better than PC or Mac. I've always liked the client/server model of X-Window. When I used to write Unix software, we actually used PC's as dumb terminals, using a rather slow and unwieldy terminal program that had been developed in-house.
And then there were the power users that run XTerm. On their Windows desktops... turns out Novell had written an X server in the 90's, and we had a copy of it. Install the X server on your PC, and you can run Unix programs on the Unix host, but display them on your PC screen just like they were another Windows program.
You can't do that with the Mac or with Windows. The remote desktop solutions for both rely on capturing and re-displaying the entire screen. X definitely does this right.
geek — 2014-03-13T16:24:01-04:00 — #3
Sure, you can setup dumb terminals a lot better on *nix, but you can't run a power app that way very well. And the success of Citrix and Microsoft's terminal server really have crushed those servers running AS/400 and the like.
wilsontp — 2014-03-13T16:59:12-04:00 — #4
Exactly. Our program ran over Telnet at first, and later they added a graphical client. Even the graphical client was still a Telnet client, but when we got to a screen the graphical client understood, the GUI tools came up. When we got to a legacy screen that didn't have GUI tools (like the reports menu), then we got the Telnet screen. It was actually a pretty smart idea; it allowed us to progressively upgrade the client side of the app, rather than forcing an all or nothing approach.
I've been out of the loop on OS400 for a while. Are you talking about SNA server, which is kind of the meat in the Desktop <> AS/400 sandwich? When I left the place that used an AS/400, they were still using a combination of IBM 5250 terminals and TN5250 clients over TCP.
system — 2014-03-23T16:05:03-04:00 — #5
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