[TUHS] FD 2

[Brantley Coile]

Original troff targeted only the C/A/T typesetter. 

bwc

> On Jan 23, 2023, at 3:58 AM, G. Branden Robinson <g.branden.robinson at gmail.com> wrote:
> 
> At 2023-01-23T00:32:53-0800, James Johnston wrote:
>> At one point it was like $22/page.
>> 
>>> On Sun, Jan 22, 2023 at 11:30 PM <arnold at skeeve.com> wrote:
>>> 
>>> Warner Losh <imp at bsdimp.com> wrote:
>>> 
>>>> And I believe that the impetus for the V7 changes was
>>>> phototypesetting 'file not found' too often...  But that last bit
>>>> is mostly because I want to believe.
>>> 
>>> Doug McIlroy has told that story here, search the archives.
>>> It was indeed becase of the phototypesetter.
> 
> Steve Johnson's email[0] (which I cited in my earlier reply to this
> thread) said it took only "a couple of days" after acquistion of the
> phototypesetter for this to happen.  But the C/A/T was acquired by
> 1973[1], and the Hunt Brothers' cornering of the silver market occurred
> in March 1980[2], over a year _after_ the release of V7[3].
> 
> It seems both of these can't be true.  I wondered if maybe only a later
> typesetter used a silver-based photochemical development process, but
> that doesn't work with troff history either, as device-independent troff
> wasn't ready to go until about January 1981, targetting the C/A/T and
> the Autologic APS-5[4], the latter with support so fresh that it wasn't
> in the manual yet[5].
> 
> Can someone reconcile these points?
> 
> Regards,
> Branden
> 
> [0] https://minnie.tuhs.org/pipermail/tuhs/2013-December/006113.html
> [1] https://minnie.tuhs.org/cgi-bin/utree.pl?file=V4/man/man1/troff.1
> [2] https://en.wikipedia.org/wiki/Silver_Thursday
> [3] https://minnie.tuhs.org/cgi-bin/utree.pl?file=V7
> [4] https://www.tuhs.org/Archive/Documentation/Manuals/Unix_4.0/Volume_1/00_Annotated_Table_of_Contents.pdf
>    (p. 2)
> [5] https://www.tuhs.org/Archive/Documentation/Manuals/Unix_4.0/Volume_1/C.1.2_NROFF_TROFF_Users_Manual.pdf
>    (p. 34)
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