> fork() is far less efficient than Windows type threading.

The system call that Windows has is closer to spawn(). Both are inefficient
compared to threading.

As I understand it Window really has two different types of threads, one
which more closely corresponds to processes and the other to threads.

> Notice that unix based OS's have added threading packages, but I've not seen
> anything like Windows trying to do fork().

I believe that threading started with unix, though not as an operating
system call, but rather a library. However, I'm not sure as to the dates.

> Bob Ammerman
> RAm Systems
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