[Info-vax] OT: obscure PDP11 OSes (even more dinosaury)

[Dirk Munk]

koehler at eisner.nospam.decuserve.org (Bob Koehler) wrote:
> In article <mm95ar$766$2 at Iltempo.Update.UU.SE>, Johnny Billquist <bqt at softjar.se> writes:
>>
>> The 11/78x was not bad, but it certainly had some performance issues.
>> The main one being that memory was sitting on the same SBI bus as
>> everything else, making that bus saturated.
>
>     On a very rough level, the 11/780 was clearly a child of the 11/70.
>     Similar setup with CPU and RAM on the SBI, with MASSBUS and UNIBUS
>     adapters also on the SBI.
>
True, the 11/70 was a forerunner of the VAX. They had a kind op 
PDP-11/70 cluster at Digital in Utrecht (Netherlands), these systems 
were called Castor and Pollux. I never saw them.