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From: jnc@mercury.lcs.mit.edu (Noel Chiappa)
To: coff@tuhs.org, paul.winalski@gmail.com
Cc: jnc@mercury.lcs.mit.edu
Subject: [COFF] Re: IBM 1403 line printer on DEC computers?
Date: Thu, 21 Dec 2023 13:56:09 -0500 (EST)	[thread overview]
Message-ID: <20231221185609.A29FA18C09C@mercury.lcs.mit.edu> (raw)

    > From: Paul Winalski

    > The 1403 attached to S/360/370 via a byte multiplexer channel ...
    > The question is, did they have a way to attach the 1403 to any of their
    > computer systems?

There's a thing called a DX11:

  https://gunkies.org/wiki/DX11-B_System_360/370_Channel_to_PDP-11_Unibus_Interface

which attaches a "selector, multiplexer or block multiplexer channel" to a
UNIBUS machine, which sounds like it could support the "byte multiplexer
channel"?

The DX11 brochure only mentions that it can be "programmed to emulate a 2848,
2703 or 3705 control unit" - i.e. look like a peripheral to a IBM CPU;
whether it could look like an INM CPU to an IBM peripheral, I don't know.
(I'm too lazy to look at the documentation; it seems to be all there, though.) 

Getting from the UNIBUS to the -10, there were off-the-shelf boxes for; the DL10 for
the KA10 and KI10 CPUs, and a DTE20 on a KL10.

It all probably needed some coding, though.

	Noel

                 reply	other threads:[~2023-12-21 18:56 UTC|newest]

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