From mboxrd@z Thu Jan 1 00:00:00 1970 From: lm@mcvoy.com (Larry McVoy) Date: Tue, 28 Mar 2017 10:42:54 -0700 Subject: [TUHS] Release of 8th, 9th and 10th Editions Unix In-Reply-To: References: <73d56a67-9efb-bc21-d1f0-d51d5b800c9c@kilonet.net> Message-ID: <20170328174254.GZ20717@mcvoy.com> On Tue, Mar 28, 2017 at 01:00:41PM -0400, Brad Spencer wrote: > Arthur Krewat writes: > > > Not according to this: https://en.wikipedia.org/wiki/Sun-3 > > > > The 3/50 was indeed a "pizza box" according to this, but Brad Spencer's > > images 7A and 7B he purports these are 3/50 boards: > > http://anduin.eldar.org/~brad/sunstuff/ - and those are definitely VME > > form-factor. Although, it's possible it uses only that "custom/private" > > third connector on the VME backplane? > > > On 3/28/2017 11:38 AM, Dan Cross wrote: > >> I *think* the 3/50 had a VME bus. As I recall, it was basically a > >> single VME board mounted inside of a pizzabox case. > > My understanding is that the 3/50 is indeed some sort of VME system, as > is the 4/110, with some address related oddities. But it has been a > very long time since I booted a 3/50 up... The 3/50 I have are in their > cases, I just opened them up for the pictures. Hmm, so the 4/110 being VME is for sure correct, I had one of those when I was at Sun. The 3/50, I just don't think it was VME. I believe they made a version that was a single VME board but so far as I know that was a different beast. I could be wrong, I googled a bit and couldn't figure it out. What I know for sure is, unlike a 4/110, you couldn't open up the case and shove more VME stuff in there. If the 3/50 was a VME board I'm not sure what the point was other than, perhaps, to reuse the same part in a small case. I can't see Andy doing that, he was super cost sensitive.