The fanciest machine I ever owned was a Sun SPARCstation 5 with Solaris 7:
https://en.wikipedia.org/wiki/SPARCstation_5
It was both great and terrible. Compared to a contemporary PC, the motherboard looked like alien technology. But within 1-2 years, you could buy a faster PC for 1/5th of the price and put Linux on it. By the end of the 90's, Linux had better development tools and a nicer desktop than Solaris' horrible CDE.
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