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by SAI_Peregrinus 2274 days ago
I think a better way to describe an RTOS than as specializing in "priority" is that an RTOS has bounded latency. If it's hard real-time that means deterministically bounded, while soft real-time means probabilistically bounded. What that bound is (or the distribution for soft real-time systems) is up to the system designer. It could be a microsecond, could be a day. But it has to exist, whereas in a GPOS there's no bound at all.