I vaguely remember that kernel threads were something new in HP-UX in the end of the 1990s. The question is, was that late? Windows NT had kernel threads from

I vaguely remember that kernel threads were something new in HP-UX in the end of the 1990s. The question is, was that late? Windows NT had kernel threads from the beginning, so maybe a few years earlier. But then it took NT years to become stable enough to be used in servers, so saying they were generally ahead would not be a correct description. So if Unix is considered late (according to the GGP) and NT not a comparable competitor, who was really early? If anybody.