[TUHS] Was pcc ever ported to the CDC6600?
Kay Parker
kayparker at mailite.com
Sat Jan 21 22:51:42 AEST 2017
> My memory of the Kyber (as we called them; we had a 72)
wasn't it a CDC Cyber?
https://en.wikipedia.org/wiki/CDC_Cyber
On Sat, Jan 21, 2017, at 04:38 AM, Dave Horsfall wrote:
> On Thu, 19 Jan 2017, Steve Johnson wrote:
>
> > PCC ended up being ported to many dozen different architectures, so it's
> > quite possible, but I don't recall it being done. It was kind of a
> > dinosaur by the early 70's. I'm not even sure that it had memory
> > protection, and it certainly didn't have paging. And the I/O system was
> > strange. So porting Unix would have been next to impossible.
>
> My memory of the Kyber (as we called them; we had a 72) was that it was
> not character-addressable, but 60-bit word-addressable, thus making
> string
> handling somewhat difficult. Don't get me started on its utterly broken
> architecture... I have thankfully lost my programming manual for the
> beast.
>
> > The main thing I remember about the 6600 was that it didn't have parity
> > bits on its memory. So people used to run the same program three times
> > and if two of the answers agreed, they published...
>
> Parity only slowed it down, and besides, hardware never failed...
>
> My fondest memory of the thing was its command completion; I would start
> to type "O, TR" and it would fill out "O, TRANSACTION TERMINAL STATUS".
> Which reminds me that my worst memory was its console keyboard, with "0"
> on the left...
>
> --
> Dave Horsfall DTM (VK2KFU) "Those who don't understand security will
> suffer."
--
Kay Parker
kayparker at mailite.com
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