That was the version of DOS that the Columbia MPC ran, and it was almost 100% compatible. I ran some code based on articles about the video card, and it couldn’

That was the version of DOS that the Columbia MPC ran, and it was almost 100% compatible. I ran some code based on articles about the video card, and it couldn’t do the 160x100 mode that people wrote about. So a lot of “clones” may have been this close as the Columbia was.