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

[Bob Koehler]

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.