Comment by jeffrallen

In case people are suspicious/wondering about this story, it is credible to me. I worked with Bill Yundt and he told the story back in 1996. I've also seen the absolute lowest layers of Cisco IOS for 68000's and it certainly appears to come from that era of computing. One especially surprising and interesting thing to me is that it uses cooperative multitasking, not preemptive. This is how systems were written in those days, based on the limitations of early microprocessors. (At the same time in the industry, protected mode multiprocessing existed. But it was in big iron, controlled by IBM, Cray, Unisys and CDC. And those are all of the has-beens now: because technologies like microprocessors, even with their limitations, took over the industry.)