On Sat, 7 Nov 1998, Mike wrote:
> This manual (Chapter 10) describes a 'ROM Cartrudge II' that is provided as
> a plug-in option in the HX-20. The ROM Cartridge II supplies from 8k to 32k
> bytes of data. Data in the externam ROM memory unit is in the forrm of a
> read-only ROM file. Data are read from the external ROM memory unit via
> i/oports using an addressing counter and a shift register....
Look on the left-hand side of the unit. See that small, rectangular black
door? That's where the expansion module plugs into. One of my HX-20's
has one. Apparently that adds another 32K of RAM.
Sellam Alternate e-mail: dastar_at_siconic.com
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Received on Sat Nov 07 1998 - 21:31:17 GMT