TJBChris | CoCo 3: Boot OS-9 Level II from ROM @TJBChris | Uploaded May 2020 | Updated October 2024, 6 hours ago.
Using the OS-9 Level II ROM Kit from Cloud-9 (purchased way back in 2002), I create a custom OS-9 ROM image, burn it into an EPROM, then boot my Color Computer 3 using the customized ROM in place of the original Extended Color BASIC ROM.

I do these videos unscripted, so I apologize if the in-the-moment descriptions of things are a bit all-over-the-place. If you have any questions/comments about this video, you can find me in any of these fine locations:

The CoCoTALK! Discord Server
The TRS-80 Color Computer (CoCo) group on Facebook
The CoCo Crew Podcast group on Facebook
On the Vintage Computer Forums (vcfed.org)

Thanks for watching!