Re: ROM 901225-01 and CBM-II series

From: B. Degnan (
Date: 2006-07-26 23:08:38

The Word Result manual offers no explanation about how the cart works, but 
I know from experience that you can't start the program without the cart in 
the cart bay.  I believe that the carts were often used for some hack or 
another that had to do with modem communications, but I have to find my 
notes on this.  The hack will probably help describe what the cart did.
Bill D


At 09:46 AM 7/26/2006 +0300, you wrote:
>On Wed, Jul 26, 2006 at 04:36:16AM +0000, William Levak wrote:
> > Anders Carlsson wrote:
> > >Would the application software (that I don't have) somehow utilize the
> > >character ROM in the cartridge as a copy protection? That is my best
> > >guess, and that Commodore/Handic used a ROM chip they had plenty of.
> >
> > That is a possibility, but I can think of others:
> >
> > The cartridge could work in a mode where the onboard character set is
> > swithched out, in which case it would need to supply another character
> > set.
>Isn't the character cell something like 8 by 13 pixels on the CBM 600 and 700
>series (B series)?  Only the P500 (CBM 500) is equipped with a VIC-II chip
>(8 by 8 character cell matrix).
> > I have seen some Commodore equipment that had random ROM's inserted in
> > sockets, just to fill the empty socket.  I have no explanation of why they
> > felt they could not leave the socket empty.
>They could have drilled holes on the circuit board, like on some PETs to
>prevent a RAM expansion, couldn't they? :-)
> > >Besides, does anyone know if there are autostarting cartridges for the
> > >CBM-II series, or do all require disk software and the cartridge only
> > >fills an auxillary function?
>There might have been a cartridge containing cassette routines.  Has anyone
>come across it?
>         Marko
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