[rescue] Mac Appliance

[Ken Hansen]

The 11/70 was implemented in a series of large cards using "discrete" logic,
as opposed to ASICs and other "modern" components...

I suspect the 11/70 was designed for function, not value (per se).

Ken
----- Original Message -----
From: "joshua d boyd" <jdboyd at cs.millersville.edu>
To: <rescue at sunhelp.org>
Sent: Friday, August 03, 2001 12:37 PM
Subject: Re: [rescue] Mac Appliance


> On Fri, Aug 03, 2001 at 12:27:30PM -0400, Dave McGuire wrote:
> > > look for old ones when they can buy new PDP 11s?
> >
> >   Are you assuming that later pdp11s are faster than the 11/70?  That
> > would be a bad assumption to make.  The pdp11/70 was released in 1974,
> > and it wasn't until the late 80's/early 90's that fasters pdp11s were
> > built (the pdp11/83 and 11/84, only marginally faster), and there were
> > many models in between those years.  The pdp11/70 was king of the hill
> > performance-wise for quite some time.
>
> So, is an 11/70 still faster than what Mentec makes?  And why did it take
> so long for something faster to come out?  If it took so long for
> something faster to come out, did the 11/70 stay in production till Dec
> cut the PDPs altogether?



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