Networking Apple IIc or IIc+
 
In a message dated 7/10/00 1:09:53 AM Eastern Daylight Time, 
ethan_dicks_at_yahoo.com writes:
> --- "Paul R. Santa-Maria" <paulrsm_at_ameritech.net> wrote:
>  > ----------
>  > > From: Ethan Dicks <ethan_dicks_at_yahoo.com>
>  > > To: classiccmp_at_classiccmp.org
>  > > Subject: Re: Networking Apple IIc or IIc+
>  > > Date: Friday, July 07, 2000 04:52 PM
>  > >
>  > There were three versions of the Apple IIgs: ROM 00, ROM 01, and ROM 03. 
>  > ROM 00 and ROM 01 have the same hardware with a different ROM.  The ROM 
03
>  > had different hardware (more memory on the motherboard, for example) and
>  > you cannot convert an earlier version to a ROM 03.
>  
>  Looking around on the motherboard - my IIgs has 128K of "Standard Ram", 64K
>  "Sound RAM", 128K "Fast RAM" an Apple-brand memory card 1/4 full of 256Kx1
>  chips (256Kb out of 1Mb) and the following stenciled on the ROM - 
"342-0077B 
> /
>  M231001-243P  743100 / (C) Apple 78, 81, 83, 86, 87 / (C) Microsoft 77"
>  
>  Presumably from your comments, the ROM-03 motherboard has more RAM than _
> that_.
>  
>  There are two jumpers on the Apple RAM card - J1 and J2; and a jumper on 
the
>  motherboard under the power supply - W1.
>  
>  Oh... per our recent discussions here, the IIgs _does_ have a Z8530 SCC 
> onboard
>  
>  
>  > A ROM 03 is considered the best if you are going to run GS/OS, the Apple
>  > IIgs 16-bit native operating system.  I am happy with my ROM 01 since I 
> use
>  > it like an 8-bit Apple IIe.
>  
>  But what's the difference between ROM 01 and ROM 02?  Is it possible to get
>  either an authentic replacement chip or to locate an image file and burn my
>  own?
>  
>  Thanks,
>  
>  -ethan
>  
I remember there being a ROM upgrade for the GS models. Presumably it was 
just a chip swap. I have no more info about it though. 
DB Young         ICQ:  29427634
hurry, hurry, step right up!  see the computers you used as a kid! 
 ->   www.nothingtodo.org
                           
Received on Mon Jul 10 2000 - 06:57:10 BST
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