Hello people, i made a sensational discovery.
that discovery is a handful of Operational Systems on Handhelds.
First of i got Workmaster for the Gameboy Classic and Gameboy Color.
Video: https://www.youtube.com/watch?v=HYzcNVzZHz0
And then there is 2 OS' for the Gameboy Advance
http://blog.boreas.ro/2007/12/run-ancie ... meboy.html
https://mb.srb2.org/showthread.php?t=16797
And at last i have a homebrew thing on gamegear, which isn't that Spectacular, in comparison of the other ones.
https://www.planetemu.net/rom/sega-game ... or-kemp-pd
tell me, what YOU think of these things.
OS for old Handhelds
Re: OS for old Handhelds
1. Workmaster seems to be like Windows. It is maybe limited, but it is OK. 
2. GBAUnix is actually Unix v5 for the GBA. It does not have a GUI, but is also OK just for those who like UNIX.
3. Plex is also another OS, like UNIX, but it is different. To me my favorite is the keyboard. It isn't that best, but it gets the job done.
4. Windows for GG is like Windows. It is a little OK.
2. GBAUnix is actually Unix v5 for the GBA. It does not have a GUI, but is also OK just for those who like UNIX.
3. Plex is also another OS, like UNIX, but it is different. To me my favorite is the keyboard. It isn't that best, but it gets the job done.
4. Windows for GG is like Windows. It is a little OK.