Path: utzoo!utgpu!watserv1!ria!obelix!ptoper
From: ptoper@obelix (Andy Nagy)
Newsgroups: comp.sys.amiga.advocacy
Subject: Re: AMIGAstation...
Message-ID: <2311@ria.ccs.uwo.ca>
Date: 19 Feb 91 22:37:33 GMT
References: <19110@cbmvax.commodore.com> <1991Feb16.180604.10623@magnus.ircc.ohio-state.edu> <12013@helios.TAMU.EDU> <1991Feb12.053906.10441@magnus.ircc.ohio-state.edu> <1991Feb16.062147.24843@NCoast.ORG> <2290@ria.ccs.uwo.ca>
Sender: news@ria.ccs.uwo.ca
Reply-To: ptoper@obelix (Andy Nagy)
Lines: 49

In article <19110@cbmvax.commodore.com>, daveh@cbmvax.commodore.com
(Dave Haynie) writes:
> In article <2290@ria.ccs.uwo.ca> ptoper@obelix (Andy Nagy) writes:
> 
> >	I believe the higher cost of the A2000 is not merely the addition of 
> >the slots.  You need to take into consideration the cost of a power supply
> >(that is 3 times the power rating of the A500), a bigger, sturdier case,
> >a separate keyboard etc.  
> 
> Exactly.  The A2000 supply is actually almost five times the rating of the
> A500 supply (200W vs. 35W).  Then there's the larger case size necessary to
> house additional cards.  The fan necessary to cool them.  The Buster chip,
> various buffers, and bypass/termination components necessary to create the 
> expansion bus.  The extra PCB board space necessary for the expansion bus.
> And, of course, the connectors themselves.
> 
> >Andy Nagy (ptoper@asterix.gaul.csd.uwo.ca)
> 

	Thanks Dave.

	In reference to the memory map you posted earlier:

        When C-A comes out with the super-duper-whiz-bang custom chip set (you
know the one with elevendy billion colours and forty million game ports (for
BLAZEMONGER, natch)) where does it go (in the memory map)?

        Also, just out of curiosity, what were the design decisions you used to
come up with this arrangement, ie were there any non-obvious
constraints, trade-
offs etc?

        As a hypothetical question, would it be possible to implement
the ZorroIII
buss using another processor ie 386, 466, i860, 32032(?) etc?

	(Sorry 'bout posting this here, but I've been trying to followup using xrn,
and the system is being uncooperative.)

> -- 
> Dave Haynie Commodore-Amiga (Amiga 3000) "The Crew That Never Rests"
>    {uunet|pyramid|rutgers}!cbmvax!daveh      PLINK: hazy     BIX: hazy
> 	"What works for me might work for you"	-Jimmy Buffett


-------------------------------------------------------------------------------
Andy Nagy (ptoper@asterix.gaul.csd.uwo.ca)
The University of Western Ontario, London, Canada
 "Dee do do do, dee da da da, thats all I want to say to you" -- The Police