Comment by mpweiher

I've always liked the Mach approach. You've got a few primitives:

- address space

- memory objects

- threads

Mix and match. A Task (process) is not a primitive, but a composite object combining address space with one or more threads. How you fill the address space with actual memory objects is up to you. Map from disk or COW your own address space...have fun!

https://developer.apple.com/library/archive/documentation/Da...