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From: jnc@mercury.lcs.mit.edu (Noel Chiappa)
Subject: Re: [TUHS] Fwd: Choice of Unix for 11/03 and 11/23+ Systems
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    > From: Paul Riley <pdr0663@icloud.com>

    >> the tty driver:
    >>
    >>  https://minnie.tuhs.org//cgi-bin/utree.pl?file=LSX/sys/tv.c
    >>
    >> only supports a single line. 

    > The second serial port would not be to support another user, but to
    > communicate with peripherals.

Ah. Well, AIX will still have an issue (above).

    Noel