14 Jul
2015
14 Jul
'15
1:35 p.m.
On Jul 14, 2015, at 3:55 PM, William Donzelli
<wdonzelli at gmail.com> wrote:
Sure, but channel controllers and PPUs are very different beasts. You can?t run your OS
on a channel controller, which is exactly what Cray did on the 6600. Nor can you
implement the entire operator user interface on a channel controller, as was done in the
DSD PPU program.
paul
...I/O processors.
I do not think you can claim that the 6600 I/O processors were all
that new. Many (most?) of the 1960s mainframes before the 6600 had
channel controllers.