Linked by Thom Holwerda on Fri 31st Oct 2008 21:41 UTC, submitted by corey
QNX If there is one operating system that has a special place in my heart, it's QNX. This microkernel operating system served as my main desktop operating system for months and months back in the day, during the short-lived QNX Desktop scene - which died out due to a lack of interest from QNX' parent company, QNX Software Systems. The money is in the embedded and high reliability markets, and that's where QSS - understandably - focused its efforts. QNX was sort-of open sourced in September 2007, and today the company has announced the release of QNX 6.4, the first major release since 6.3 in 2004.
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A few thoughts from a QNX non-user
by samad on Sun 2nd Nov 2008 23:25 UTC
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I have spent this morning reading the technical documents describing the architecture of QNX.

I am really impressed with QNX! The messaging system that is the basis for the entire operating system is well developed. They have been successful with creating a POSIX OS with an effective microkernel design whose performance is comparable to monolithic kernels. I don't think MINIX could compete with QNX when it comes to performance. QNX is far more elegant than the Linux kernel.

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