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Path: utzoo!watmath!watnot!watdcsu!herbie
From: herbie@watdcsu.UUCP (Herb Chong [DCS])
Newsgroups: net.wanted
Subject: Re: IBM 3270 Emulation under Un*x
Message-ID: <1484@watdcsu.UUCP>
Date: Tue, 18-Jun-85 11:29:17 EDT
Article-I.D.: watdcsu.1484
Posted: Tue Jun 18 11:29:17 1985
Date-Received: Wed, 19-Jun-85 03:01:09 EDT
References: <545@rlvd.UUCP> <1023@mnetor.UUCP>
Reply-To: herbie@watdcsu.UUCP (Herb Chong [DCS])
Organization: U of Waterloo
Lines: 40
Summary: 

In article <1023@mnetor.UUCP> clewis@mnetor.UUCP (Chris Lewis) writes:
>	2) There is at least two systems that are run on the IBM mainframe
>	   that make ordinary dumb terminals look like 3278's (ideal
>	   for dialup use without having to have remote clusters).  I can
>	   only remember one of them:
... etc. ...

the other is the Yale IUP available both from Yale University and IBM.
it requires a series/1 frontend to act as a 3274 or 3276 terminal
controller, but appears to the VM system as a real 3277 or 3278
terminal.  there is no support yet for 3279 or 3290 terminal
emulation.  the number of terminals supported is quite limited (only a
dozen or so) but vt52 and vt100's are supported.  we run SIM3270 on our
Gandalf LAN at between 300 and 2400 baud and Yale on our Sytek LAN at
4800 to 19.2K baud to connect our network of VM systems.  a total user
community of over 15,000 userids is supported with approximately 80
3278 terminals and about 3000 Sytek and Gandalf connections.  we
managed to recycle our series/1 machines from when we used to run
WIDJET (some of you may have heard of it) on them as RJE workstation
controllers interfacing to our OS/360 system.

Yale is an expensive alternative but requires the least amount of
resources on the IBM mainframes.  connecting the series/1 computers to
a LAN allows access wherever the LAN goes and supports dumb terminals
of various types.  the structure of the emulation software in the
series/1 allows certain types of terminals to be added very easily by
adding a terminal table.  certain other terminal types are handled less
well because of the limited dcescription that can be made of a
terminal.  using Sytek as the LAN has advantages because it's also
the network used by IBM to connect their PC's together using the
PC-DOS 3.1 networking software and hardware.

Herb Chong...

I'm user-friendly -- I don't byte, I nybble....

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