>Megan wrote:
> >Why do you think you want a PDP-11/74? That's one of the "never-11s",
> >a machine designed but never sold. It's the biggest -11 ever made.
> Designed and *BUILT*... it is, however, essentially unobtanium...
Jerome Fine replies:
I heard a rumour that one was sold to Ontario Hydro
and they were the company who would not return
the PDP-11/74. Thus far, everyone there denies it.
> I have a line on one, but only if/when the person currently in
> possession of it ever tires of it.
Any possibility that the PDP-11/74 could be emulated
under E11 with a hyperthreaded Pentium 4? Eventually
John Wilson "MIGHT" get to the point when there is
very little left to do?????? What extra details would
be needed for such a system?
Of course, it would end up running so much faster
than the real PDP-11/74 and that might be a problem!
A test on a 2.4 GHz Pentium 4 indicates that E11
might run about 50 times the speed of a PDP-11/93.
The test was very short, mostly I just compared
a VM: of about 7079 blocks against itself. Using
a enhanced version of BINCOM (also the standard
DEC version so the results can be duplicated), I found
the following approximate times in seconds:
PDP-11/83 28.57 35.13
750 MHz P III 1.85 2.53
2.4 Mhz P4 0.6? not done
Sincerely yours,
Jerome Fine
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Received on Sun Dec 14 2003 - 20:12:36 GMT