First up, some testing with Windows 2.1. It worked surprisingly well from a single floppy disk.
Next came a proof-of-concept Windows 3.00a install. I stripped it down until I could cram the whole thing onto a floppy and, somehow, that worked too.
And finally, the end result.
Note the change in the colour of the light. The sun had long since set by the time I finished this journey several hours later.
The next goal is getting a hard drive into the TeraDrive, either through the strange 44-pin connector on the motherboard or through an ISA expansion card.
At this stage I knew the connector was unusual, but I had not yet worked out exactly what interface Sega and IBM were using. I later investigated it in considerably more detail and found that it belonged to the same unusual IBM storage family used in some early PS/2 systems.
We will be victorious!



For now, please welcome Nintendo Game Boy to the family.
I had one of these back in primary school, I think. Long time ago now.
Good times with Tetris and Super Mario Land… oh, and Snow Brothers on my dodgy 10-in-1 pirate cart.
Related posts
Further Reading
- Sega TeraDrive Hard Drive Interface: IDE, ESDI or XTA? - my later investigation into the TeraDrive’s unusual 44-pin hard-drive interface.