1 Jun
2023
1 Jun
'23
8:52 p.m.
On 2023-06-01 20:39, Thomas DeBellis wrote:
The most recent that I have from you for OST is 19,
Ultrix-11. I don't
have anything past 9, OS-8 (!!). So I'll be delighted to shovel those
into my sources, THANKS!!
You are welcome. I remember when I posted this previously, there was a
bunch of talk about COPOS, which noone seems to know what it was/is.
I /did/ have a few questions (naturally)
First, what do you do after you get the foreign configuration message in
NFT? Send an access complete and close or just close? I punt the
connection, and was wondering whether that might be considered a rude
thing to do.
Well, *I* don't, but NFT basically just closes the connection, I
believe. But exactly how, I don't know. Would have to check the sources,
or possibly check what packets come over at that point...
Second, what does DTS/MVS mean?
I always think of something with IBM when I see it, but I don't know.
Most entries in that list are there from way back when DEC was working
on it.
Finally, Ultrix-32 as a file system reminds me of
something that I had
been thinking about, which is that a number of operating systems can
actually concurrently run multiple file systems.
Right.
As an arcane example, one time I was walking past 2102
(Tops-20 Monitor
Development) and almost fell out of my sneakers seeing that it had a
Tops-10 disk pack mounted. After checking that it wasn't a dual port
set exclusive to one of the nearby (beautiful) KI's, I saw that Tops-20
was really using it. Wow. It's true, the hooks to use Tops-10 file
systems remain in PA1050. Tops-20 also treats DECtape as a different
file system, but I can't imagine what it would be reported as.
Clearly Unix can run a bunch of different file systems, so I won't get
into listing those.
Windows/NT, 2000, XP and I forget what else can run FAT12, FAT16, FAT32,
HPFS and NTFS.
I had been wondering how DAP might accommodate this, or whether it
needed to.
VMS also, and RSX can also easily do this.
But I do not think it matters. For DAP, it's basically what kind of
functionality is supports. And this field is not directly used by
anything, I think, but is purely for "diagnostics".
But I'm sure Paul can correct me on that one.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol