24 Jan
1998
24 Jan
'98
2:47 p.m.
i havent had any problems finding either a 5140 or 5155. i have two portable
pcs and one convertible which i traded a nic for. i have seen 5155s at several
hamfests, and even saw two at a hock shop for $150 each <!> I have a book that
says the 5155 was "rare" but i disagree. i'd much rather love to find a
complete 3270pc or a xt370 or even an at370.
david
In a message dated 98-01-24 20:06:45 EST, somebody got back to topic and
wrote:
<< I don't know, Sam, but as one who does a bit of IBM collecting, there seems
to be many more 5140s floating around out there than the 5155s. I have a
perfect 5140 in my collection, but the 5155 has eluded me (so far).
Cliff Gregory
cgregory(a)lrbcg.com >>
24 Jan
24 Jan
3:26 p.m.
I paid the same for my Portable as my 3270pc (complete w/monitor) --
15.00
Don't feel bad. I recently pulled down a good little Compaq Portable
III lunchbox w/286 & 287 for 6 bucks...
Utah sucks, except for its thrift store computer shopping....
I watched 2 rainbow 100s and a decmate II sit for months. I would have
bought the decmate, but there seemed a small short in the power from the
cpu to the monitor. As it is one of those integrated power cords, I
figured I'd probably electrocute myself dickin with it.
-Mike
SUPRDAVE wrote:
i havent had any problems finding either a 5140 or 5155. i have two portable
pcs and one convertible which i traded a nic for. i have seen 5155s at several
hamfests, and even saw two at a hock shop for $150 each <!> I have a book that
says the 5155 was "rare" but i disagree. i'd much rather love to find a
complete 3270pc or a xt370 or even an at370.
david
In a message dated 98-01-24 20:06:45 EST, somebody got back to topic and
wrote:
<< I don't know, Sam, but as one who does a bit of IBM collecting, there seems
to be many more 5140s floating around out there than the 5155s. I have a
perfect 5140 in my collection, but the 5155 has eluded me (so far).
Cliff Gregory
cgregory(a)lrbcg.com >>
6:09 p.m.
On Sat, 24 Jan 1998, SUPRDAVE wrote:
i havent had any problems finding either a 5140 or
5155. i have two portable
pcs and one convertible which i traded a nic for. i have seen 5155s at several
hamfests, and even saw two at a hock shop for $150 each <!> I have a book that
says the 5155 was "rare" but i disagree. i'd much rather love to find a
complete 3270pc or a xt370 or even an at370.
Hmmm...now where did I pass up on that 3270PC? Or did I get it after all?
I can't remember. Why are those so rare?
And I guess the XT370 and AT370 were machines with 370 emulator boards in
them to act as terminals to a 370 mainframe?
Sam Alternate e-mail: dastar(a)siconic.com
-------------------------------------------------------------------------------
Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass
Coming Soon...Vintage Computer Festival 2.0
See http://www.siconic.com/vcf for details!
6:43 p.m.
I'm not that impressed with the 3270pc. I bought it because I wanted
stuff out of it, but it was all pretty much proprietary (and covered in
dust and old) lots of wire wrapping and jumpers, so I just left it
alone. Now I use it to test Linux-16.
The REAL question is, if IBM used these as terminals which could run
software, what did they have in them allowing them to use the network
ports? I mean that was 1984, DOS might have had some hooks, but they
would have sold it.
Were these running XENIX/86, CPM86, or what? Anyone know? Anyone have
the software...
*|*
--- ....real cool, man
"
-Mike
Sam Ismail wrote:
On Sat, 24 Jan 1998, SUPRDAVE wrote:
i'd much rather love to find a
complete 3270pc or a xt370 or even an at370.
Hmmm...now where did I pass up on that 3270PC? Or did I get it after all?
I can't remember. Why are those so rare?
And I guess the XT370 and AT370 were machines with 370 emulator boards in
them to act as terminals to a 370 mainframe?
Sam 
6:57 p.m.
The REAL question is, if IBM used these as terminals
which could run
software, what did they have in them allowing them to use the network
ports? I mean that was 1984, DOS might have had some hooks, but they
would have sold it.
Somewhere, back at the homestead, I still have a bunch of xt3270 stuff
(software, manuals, etc.). I suppose I ought to go fetch it.
These really did not have to support "real" networking. In fact, they fit
somewhere between a network and a dumb terminal. Most mainframes talk to
terminals on a block basis, unlike minis that talk character by character.
The mainframe's terminals (in this case, a 3270 like device) acted as a
smart terminal, taking over a lot of the text inputting/formatting tasks.
The XT3270 does this - it just uses the XT as a brain.
William Donzelli
william(a)ans.net
7:26 p.m.
So, basically, they just used a terminal program, and rather than run it
through a serial port, they just routd it through a little faster coax
connection. Probably the board is just as (un)sophisticated as a serial
board compared to a network board.
Still, I wouldn't really want the 3270 on a network, but rather use it
as a terminal on UNIX or a DOS machine....
A 8088 is still pretty damn smart...
-Mike
William Donzelli wrote:
The REAL question is, if IBM used these as
terminals which could run
software, what did they have in them allowing them to use the network
ports? I mean that was 1984, DOS might have had some hooks, but they
would have sold it.
Somewhere, back at the homestead, I still have a bunch of xt3270 stuff
(software, manuals, etc.). I suppose I ought to go fetch it.
These really did not have to support "real" networking. In fact, they fit
somewhere between a network and a dumb terminal. Most mainframes talk to
terminals on a block basis, unlike minis that talk character by character.
The mainframe's terminals (in this case, a 3270 like device) acted as a
smart terminal, taking over a lot of the text inputting/formatting tasks.
The XT3270 does this - it just uses the XT as a brain.
William Donzelli
william(a)ans.net
9657
days inactive
9658
days old
5 comments
4 participants
participants (4)
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