DM32

[Eric Rechlin]

(05-13-2022 01:47 AM)David Hayden Wrote:  How are they able to emulate the voyager series (12C, 15C, etc.)? Aren't all the ROMs copyrighted?

The Voyager series (and their predecessors) are a special case. At the time they were made, things had to have a copyright notice on them to be copyrighted. HP neglected to include a copyright notice in their ROM chips, so they weren't copyrighted and therefore can be emulated, even commercially, without restriction. The only thing protecting them is trademark, so as long as you don't call your clone an "HP 12C" or something similar you are fine with selling a clone. This is no longer the case for new creations, though, as everything made for the last several decades is automatically copyrighted without a notice needed.

That's why my speculation is that the DM32 has been recreated from scratch, much like the DM42, rather than it being based on an emulated Saturn and running an HP ROM, and the early comment about it being a "Saturn-based" machine is likely incorrect, as it's instead just simulating a Saturn-based machine (again, like the DM42).