My understanding is that a variant of the same architecture became the Sega 8-bit consoles (which was repeated again in the portable Game Gear). There's some ho

My understanding is that a variant of the same architecture became the Sega 8-bit consoles (which was repeated again in the portable Game Gear). There's some hobbyist ports between the systems floating around the internet. Sega for a while also had a policy of incrementing architecture by adding more "power" to their original architecture. So the Sega Genesis/MegaDrive is essentially still compatible with the Master System (the SMS adapter was pretty much just a pin adapter)...which means that the Spectravideo/MSX architecture lived on in some form for a very long while.