From: jkunz@unixag-kl.fh-kl.de (Jochen Kunz)
Subject: [TUHS] pdp11 question
Date: Sun, 14 Nov 2010 09:14:35 +0100 [thread overview]
Message-ID: <20101114091435.4c5a5e71.jkunz@unixag-kl.fh-kl.de> (raw)
In-Reply-To: <Pine.BSI.4.64.1011131436510.185@malasada.lava.net>
On Sat, 13 Nov 2010 14:38:29 -1000 (HST)
Tim Newsham <newsham at lava.net> wrote:
> How much does an old pdp-11 type system cost these days
Depending on the source you may get it for free or you may pay several
thousand $$$$.
> How much power do they take up to power on?
IIRC my PDP-11/73 with some periperal controllers and two 5.25" ESDI
disks takes less then 200 Watts.
> Whats maintenance like on those things?
Nothing special. Some peripherals may need maintenance like cleaning
tape drive heads.
There are several models of the PDP-11. From small systems like the /03
to big multi rack instalations like the /70. If you want a small system
to play around at home look for a later QBus model, i.e. PDP-11/[5789]3.
Those machines come in or can be reduced to a single 3U 19" rack mount
box called BA23. The BA23 can be mounted in a flor stand, no need for
a 19" rack.
There is a slightly larger box, the BA123. The BA23 and BA123 where
common boxes for MicroVAXen too. So if you get just the OBus card set
for a PDP-11 you can convert a MicroVAC to a PDP-11. Many peripherals
are comon to PDP-11 and MicroVAXen like RQDX3, TK50 / TK70, ...
All you need to convert a QBus MicroVAX to a PDP-11 are a QBus PDP-11
CPU and memory. (I went this route.)
--
\end{Jochen}
\ref{http://www.unixag-kl.fh-kl.de/~jkunz/}
next prev parent reply other threads:[~2010-11-14 8:14 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-14 0:38 Tim Newsham
2010-11-14 1:03 ` Larry McVoy
2010-11-14 1:59 ` Warner Losh
2010-11-14 2:43 ` Pasquale Villani
2010-11-14 7:08 ` Greg 'groggy' Lehey
2010-11-14 9:56 ` Wilko Bulte
2010-11-17 23:36 ` Pete Turnbull
2010-11-14 22:22 ` Nick Downing
2010-11-15 0:17 ` Larry McVoy
2010-11-14 9:51 ` Wilko Bulte
2010-11-18 6:34 ` Lars Brinkhoff
2010-11-14 12:32 ` Pete Turnbull
2010-11-14 8:14 ` Jochen Kunz [this message]
2010-11-14 14:01 ` Pat Villani
2010-11-18 18:57 Norman Wilson
2010-11-18 19:26 ` Bill Pechter
2010-11-18 19:27 ` Carl Lowenstein
2010-11-18 21:03 ` Wilko Bulte
2010-11-29 23:05 ` Ian King
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