The historical obscurity of the SEGA SC-3000 Personal Computer dev.to

This post is part of a series on the retro SEGA SC-3000 personal computer.
Upon closer inspection, I could see the plastic bag seemed to contain a stack of old video games and assorted peripherals.
Wait, a SEGA computer?
The SEGA SC-3000 has no operating system.
The SC-3000 cartridge slot was also compatible with games for the earlier SG-1000 and the SEGA "my card" format.