Be was designed to be lightweight and parallel. It was optimized for many threads and the API pushed you to embrace threading. It also had pretty decent schedul

Be was designed to be lightweight and parallel. It was optimized for many threads and the API pushed you to embrace threading. It also had pretty decent scheduling for media stuff. Not quite real-time OS, but closer. It was screaming fast and responsive. The catch is that it was much less mature. It was single user and had very little real security. It had basic Posix support, but NeXT has much more rich BSD-ishness.