[TUHS] PDP-11 questions

Clem cole clemc at ccc.com
Mon Jan 25 22:27:41 AEST 2016

Dave not doubt. Sorry. I didn't  publish.  FWIW Ted took that code back to  the USG though :-).  I've forgotten when the 34 was released. I think it was late 77 maybe early 78 but it was before 79 as the 34/A would have been by then. (I'll have to ask Jeff Mitchell who did the CPU if I see him anytime soon). 

BTW Because Gordon Bell was a CMU prof , we tended to have early DEC product. Urban legend is Bell  would match transistors to make the amplifiers by hand when he designed the for runner to 8 cpu. 

We had serial #1 of the Vax and our EE dept had serial #9 of the 8 and I fairly sure the 34 was under 10 too.  My memory is that was the summer of '77.  Danny Klein and I wrote the original RK07 driver for UNIX a year later because we had a very early one of those.

  Another infamous story of CMU and early processors was the KL10 in late 75/early 76.  DEC's site prep book for the KL series had not been written and CMU wired for a KA10 not know any better.  When DEC first powered up, it blew the main circuit in Science Hall putting us all in the bldg in darkness.  I was in the computer room when it went completely silent and dark - very strange. 

Sent from my iPhone

> On Jan 25, 2016, at 12:32 AM, Warren Toomey <wkt at tuhs.org> wrote:
> Implementing Unix on a PDP-11/34, Dave Horsfall, AUUGN 1(6) pg 17, September 1979, see http://www.tuhs.org/Archive/Documentation/AUUGN/AUUGN-V01.6.pdf
> Cheers, Warren
>> On 25 January 2016 1:16:22 pm AEST, Dave Horsfall <dave at horsfall.org> wrote:
>>> On Sun, 24 Jan 2016, Clem Cole wrote:
>>>  We have a very early serial # 11/34 under 10 IIRC in the EE Dept at CMU 
>>>  (One of my claims to fame was bring UNIX up on it for the first time - 
>>>  by hacking the 11/40 support - although I think Noel and few others did 
>>>  it in other places too there after).  
>> [ Warning: self-promotion ahead ]
>> I believe that I was the first to port Unix (V6) to the 11/34 in 
>> Australia; there should be a paper that I wrote, somewhere in the 
>> archives.  I was not aware of any prior work at the time, although 
>> subsequently a couple of bods came out to say that they'd beaten me to it 
>> (then why didn't they publish?).
>> In the words of the inimitable Tom Lehrer: "I publish first!".
> -- 
> Sent from my Android phone with K-9 Mail. Please excuse my brevity.
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