Source: Hacker News
Article note: That demo disk really was one of the niftiest artifacts ever shipped.
A modern looking GUI and a network stack and everything on a floppy, which pretty much "Just worked."
QNX itself is both historically interesting and widely used in embedded things where most people probably don't realize that's what they're interacting with; it's fast, it's UNIX-like enough to be easy to develop for, good RT features while maintaining those UNIX-like semantics where it can, customizable, and apparently the license terms are reasonable. Certainly getting squeezed from above by Linux's steadily-less-annoying RT features, and from below by Zephyr lately, but still a reasonable choice.
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