Chinese “educational computers” from the 1990s. They were bootleg NES clones that ran bootleg BASIC and imitation MS-DOS

Here's someone digging around with a "learning machine". It boots in DoS. Runs a bootleg Win 98, and plays Famicom games.
He even figureds out a little bit of how to program on it (very very little bit)
Really cool stuff.

https://youtu.be/kp4Rr7CJBAI

That's fucking awesome.