Show me another OS that you can undress to the kernel, a console, a file system and a disk driver and then build it all up again without missing a beat.
The kernel processes are actual processes so each of the drivers is fully sandboxed, an error in one bit of code can not cause any other processes to be affected unless you explicitly declare that it should be so (shared memory, for instance) and of course you don't do that.
The reduction of scope alone is worth at least 30 IQ points.
Absolutely rock solid. I built some specialized network devices using QnX and those things ran for a decade+ after first installation. Not a single reboot.
Show me another OS that you can undress to the kernel, a console, a file system and a disk driver and then build it all up again without missing a beat.
The kernel processes are actual processes so each of the drivers is fully sandboxed, an error in one bit of code can not cause any other processes to be affected unless you explicitly declare that it should be so (shared memory, for instance) and of course you don't do that.
The reduction of scope alone is worth at least 30 IQ points.
Absolutely rock solid. I built some specialized network devices using QnX and those things ran for a decade+ after first installation. Not a single reboot.