[whartung]

I cannot speak to DuskOS, I don’t know anything about it.

While historically Forth has been “its own OS”, it’s a kind of crummy one. Especially for anything a modern reader might think of when they think of an OS.

I mean, for sure, what do you want from something that can run in 8K of RAM. But while it offers primitives, historically it doesn’t of any concept of things like drivers or most any other abstractions. Code is loaded from source code (which is slow). Linking is just loading blocks in the right order. Loading a new program you must first remove the current one.

Arguably not much better than CP/M, which routinely cold started the machine to exit a program, but at least it separated the BIOS from the BDOS.