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Re: If you could design a $300 homecomputer today, what would you choose?


"Roy Miller" <millers@inebraska.com> wrote in message
3B537CB9.D08CB935@inebraska.com">news:3B537CB9.D08CB935@inebraska.com...
> william strutts wrote:
>
>
> But he mentioned 4-8 megs of RAM, which is VERY doable with a 68000, and
the

This is true but the other memory is still memory and has to be accessed
in some manner.  Plus we are talking about a sub-300 dollar machine
and any custom logic is going to cost money.

> 64-256 as battery backedup RAM disk for documents. As RAM disk, the
address
> lines aren't the issue. You can have 1 meg RAM disks with the Apple ][+.
>
Oh really.  You still have to get stuff in and out of your RAM disk and it
takes address lines.  You will still need an address decoder to be able
to switch banks of RAM in and out of main memory.  It doesn't happen
like magic.  A real address in memory must somehow find its way
to the correct bank of RAM that you want to access.  It is a real
pain in the butt doing it that way.  The Apple II couldn't address
more than 64K or RAM at any one time anyway.  Programs
never exceeded the size of memory space.  The 68K is a totally
different animal.  Programs can be huge on a 68k machine.  I don't
think you would want to bank switch RAM to run a program.

--
--
William R. Strutts - wrstrutts1@nospam.home.com - Whatever!

C'est moi!  http://www.facelink.com/wrstrutts

Just hacking away...

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