Date   : Tue, 31 Aug 2010 01:11:06 +1030
From   : station240@... (paul aslin)
Subject: Does MOS 4.0 work properly in a full Master ?

I seriously doubt an EPROM is cheaper than a mass produced masked rom.

I order to include ANFS Acorn needed to make a new rom, by leaving out the
disk file systems, view, terminal etc, they could prune MOS down to use a
512kbit rom, Which saves to cost of either a masked rom, or a 1mbit eprom
and 32 to 28 pin adapter.

> From: michael.firth@...
> To: jgh@...; bbc-micro@...
> Date: Sat, 28 Aug 2010 20:51:40 +0100
> Subject: Re: [BBC-Micro] Does MOS 4.0 work properly in a full Master ?
> 
> I guess one other benefit for Acorn is that MOS 4.0 and its associated
ROMs fits into a standard 27C512 ROM, which probably helped with the Master
ET's cost saving.
> 
> Regards
> 
> Michael
> 
> -----Original Message-----
> From: J.G.Harston <jgh@...>
> Sent: 28 August 2010 2:35 PM
> To: bbc-micro@... <bbc-micro@...>
> Subject: Re: [BBC-Micro] Does MOS 4.0 work properly in a full Master ?
> 
> 
> Rick Murray wrote:
> > ...what benefit does it actually provide? What does it do that the
> > standard Master MOS cannot do?
> 
> The MOS multi-ROM has ANFS built in.
> 
> Full stop.
> 
> Now, onto what MOS 4 /cannot/ do that MOS 3 /can/.... quite a lot.
> 
> JGH
> 
> 
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