From: Paul Winalski <paul.winalski@gmail.com>
To: Clem Cole <clemc@ccc.com>
Cc: The Eunuchs Hysterical Society <tuhs@tuhs.org>
Subject: [TUHS] Re: Of /dev/tty8
Date: Mon, 18 Mar 2024 10:58:04 -0400 [thread overview]
Message-ID: <CABH=_VSUT+R5YPcLPqNKQPp6Q-vV_-FmyUYPF9aMsHZ-OoNVuA@mail.gmail.com> (raw)
In-Reply-To: <CAC20D2O=puTR4qxRvVS0i2oYqYTMEza=7scP5h+CfL0WYDroMw@mail.gmail.com>
[-- Attachment #1: Type: text/plain, Size: 613 bytes --]
On Mon, Mar 18, 2024 at 9:57 AM Clem Cole <clemc@ccc.com> wrote:
> The DZ11 is an eight-port mux (with short pinned modem control and no DMA
> - both causing issues).
>
I'm pretty sure that when we beta tested the VAX-11/780 in the summer of
1977 it had a DZ11. We only had a few LA36 printing terminals on it so we
never saw any issues with it. Not so when I started work at DEC in 1980.
The VAX-11/780 I worked on had IIRC three DZ11a supporting 24 terminals.
The lack of DMA was a big issue. We had to run our VT52s no faster than
300 baud or it brought the system to its knees.
-Paul W.
[-- Attachment #2: Type: text/html, Size: 925 bytes --]
next prev parent reply other threads:[~2024-03-18 14:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-18 11:13 [TUHS] " Dave Horsfall
2024-03-18 11:22 ` [TUHS] " Ron Natalie
2024-03-18 19:36 ` Dave Horsfall
2024-03-18 20:17 ` segaloco via TUHS
2024-03-18 13:56 ` Clem Cole
2024-03-18 14:58 ` Paul Winalski [this message]
2024-03-18 15:20 ` Larry McVoy
2024-03-18 20:08 ` Ron Natalie
2024-03-18 20:21 ` segaloco via TUHS
2024-03-18 22:39 ` Bakul Shah via TUHS
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CABH=_VSUT+R5YPcLPqNKQPp6Q-vV_-FmyUYPF9aMsHZ-OoNVuA@mail.gmail.com' \
--to=paul.winalski@gmail.com \
--cc=clemc@ccc.com \
--cc=tuhs@tuhs.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).