From: kayparker@mailite.com (Kay Parker )
Subject: [TUHS] Was pcc ever ported to the CDC6600?
Date: Sat, 21 Jan 2017 04:51:42 -0800 [thread overview]
Message-ID: <1485003102.1912634.854925048.79C4A97C@webmail.messagingengine.com> (raw)
In-Reply-To: <alpine.BSF.2.20.1701212312420.91127@aneurin.horsfall.org>
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> 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
--
http://www.fastmail.com - Does exactly what it says on the tin
next prev parent reply other threads:[~2017-01-21 12:51 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-19 2:52 Nemo
2017-01-19 17:47 ` Steve Johnson
2017-01-19 17:52 ` ron minnich
2017-01-19 18:06 ` Charles Anthony
2017-01-21 12:38 ` Dave Horsfall
2017-01-21 12:51 ` Kay Parker [this message]
2017-01-21 14:42 ` Lorne Wilkinson
2017-01-21 15:44 ` Larry McVoy
2017-01-21 22:55 ` Dave Horsfall
2017-01-21 16:27 ` Ronald Natalie
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