[Simh] Questions on SIMH VAX

[Patrick Finnegan]

On Wednesday 09 June 2010, Carl Lowenstein wrote:
> On Wed, Jun 9, 2010 at 2:06 PM, Hittner, David T (IS)
> 
> <david.hittner at ngc.com> wrote:
> > Be careful if you are using the wireless NIC of the netbook. Read
> > the SIMH FAQ about wireless Ethernet, particularly the info about
> > Decnet Phase IV compatibility, and be prepared to adjust cluster
> > timeouts as required; significant delays can occur during wireless
> > disruptions.
> >
> > As to VUPs, the netbook can't be worse than a VAX-780 :-)
> 
> Surely you jest.  The speed of CPUs has increased by three orders of
> magnitude since the days of the VAX-780.  Measured nowadays in GHz
>  not MHz.  So it would take a lot of interpretive overhead to throw
>  that away.
> 
> As I recall, the 780 was about 0.5 MHz, and the run-of-the-mill
> netbooks are 1.6 GHz.

10MHz according to my 11/780 maintenance manual, unless you mean 0.5MIPS 
which I hear is close to accurate (1VUP anyways).  Of course, the I/O 
speed on the 780 is a lot better than a ~1VUP VAXstation would be..

Pat
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