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From: jms@tardis.Tymnet.COM (Joe Smith)
Newsgroups: comp.sys.amiga
Subject: Re: New Agnus - what is it called?
Summary: Silly names are starting to sound stupid.
Keywords: Fat, fatter, fattest, obese, obeser .....
Message-ID: <1120@tardis.Tymnet.COM>
Date: 4 Jun 90 06:01:54 GMT
References: <4157@munnari.oz.au>
Reply-To: jms@tardis.Tymnet.COM (Joe Smith)
Organization: BT Tymnet, San Jose, CA
Lines: 32

In article <4157@munnari.oz.au> ianr@mullian.ee.mu.OZ.AU (Ian ROWLANDS) writes:
>	Correct me if I'm wrong. The original 1000 had an Agnus chip, the
>500/2000 had the Fat Agnus chip. The ECS contains a "Fatter" Agnus.
>	So the obvious question is - what exactly is this new Agnus called?
>Is it 'Fatter', 'Obese', or any other variations? Interested minds just
>want to know!

It's not fatter.

The difference between the Fat Agnus and the original Agnus is that the
new one is physically fat.  You can measure it with a ruler.
Only the A1000 has a skinny Agnus.  It is 0.67 x 2.44 inches in size.
All other Amigas have a fat Agnus.  It is 1.25 x 1.25 inches, square.
All fat Agnus chips are equally fat - they all have the same physical
dimensions.  The difference is 512K vs 1M vs 2M address space.

Therefore the newer Agnus chips ARE NOT FATTER!!  (based on the original
designation where "fat" means twice as wide.)

I count 6 versions of Agnus.
A1000:		8361 = original/NTSC	8370 = original/PAL
A500/A2000:	8367 = Fat(512K)/NTSC	8371 = Fat(512K)/PAL
A500/A2000:	8372A = Fat/1Meg, NTSC+PAL+VGA
A3000:		8372B = Fat/2Meg, NTSC+PAL+VGA

Remember, it was Commodore who came up with the nick name of "Fat Agnus".
And they recommend calling them the 512K Agnus, 1-Meg Agnus, and 2-Meg Agnus.
-- 
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