Linked by Thom Holwerda on Thu 18th Nov 2004 10:19 UTC
QNX I think that everyone reading OSNews will have heard at least something about QNX. You can regard this article as an introduction, but also as a review, and as a "Is-QNX-Ready-For-The-Desktop? article". To start off, I put together a short explanation of the merits of using a microkernel. Let me start off by saying that QNX Software Systems (QSS) does not aim towards the desktop with their Neutrino RTOS.
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QNX Design
by Luke McCarthy on Thu 18th Nov 2004 15:08 UTC

From what I can gather, the QNX designers spent a lot of time deciding the best place to put functionality (whether the kernel, the 'extra bit' which I can't remember the name of, or in servers) and normalising concepts to simplify implementing POSIX. A lot of good engineering has gone in to this OS.