I used an eval of the desktop version of QNX for a short time. Got it from a CD that came along with a computer magazine. Even in that short time, I got a feel

I used an eval of the desktop version of QNX for a short time. Got it from a CD that came along with a computer magazine. Even in that short time, I got a feel that the OS was quite fast, compared to early Linuxes that I used around the same time, and Windows. Remember reading in the mag that it had that Photon GUI, IIRC, that others have mentioned in comments here. I tried out at least some apps, bash, etc., and they were all snappy.