Initially, this map was once played on a tiny Netbook, just to see what a netbook can do, or handle.
Ultimately, the physical buttons started to fail, and the system would hang, due to hardware problems, and ultimately, wound up on an old laptop, nearly the same specs, but far better video hardware.
This is the world made on both machines, which includes a 10.36Km (About 6.4mi) railroad, which connect all 5 towns discovered at this point. All done in Survival Mode, no Creative Mode whatsoever.

Video of this world are all done capturing a displayed image with a camera, since neither machine can handle anything well, with Minecraft running.