DEC "Junk" rescued

[Paul Koning]

>>>>> "Allison" == Allison  <ajp166 at bellatlantic.net> writes:

 Allison> F11 machines are a good workhorse 11s.  As far as my data
 Allison> goes all of the chip (F11 and J11) cpus on unibus are faster
 Allison> by some amount as there isn't the multiplxed address/data
 Allison> bus transaction.  Though I believe the real reason was to
 Allison> preserve the unibus IO investment and generally higher IO
 Allison> transaction rate that unibus devices enjoyed.

I thought it was the other way around, because Qbus has burst mode DMA
which Unibus does not have.  But I don't remember specific data.

      paul