--- Dan Linder <dlinder_at_uiuc.edu> wrote:
> List,
>
> There is an IBM 3725 available... Just a large heavy blue computer.
> I'm also quite interested in what it is.
It is big, it is heavy, it is blue, but it isn't a computer. It's a
PU (Physical Unit) Type 4 as seen from an SNA network standpoint, and is
more commonly known as an FEP (Front End Processor) - Think of it as the
I/O interface for a mainframe.
This is the thing that a 3274 would talk to - that box we were discussing
here a few days ago. The CPU is a PU Type 5, the 37x5 is the PU Type 4,
the 3274 is a PU Type 2 and they all coexist happily in their own roles
on an SNA network. Each PU Type can initiate or resond to certain types
of network traffic; it's very hierarchical and structured.
-ethan
=====
Even though my old e-mail address is no longer going to
vanish, please note my new public address: erd_at_iname.com
The original webpage address is still going away. The
permanent home is:
http://penguincentral.com/
See
http://ohio.voyager.net/ for details.
__________________________________________________
Do You Yahoo!?
Send online invitations with Yahoo! Invites.
http://invites.yahoo.com
Received on Sat Apr 22 2000 - 11:21:28 BST