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  • Ah, the DDS - running COS and CTS systems. Yet another example of DEC selling the same things under different names :-) Commented Feb 5, 2024 at 1:03
  • I was at first a bit shocked by such an early release date, but from a closer look at various sources it appears that the the /45 (1972) and the /50 both used the same KB-11 CPU, but the /45 used core memory, and a model with MOS semiconductor memory was considered a /50, which makes much earlier release date make more sense. Thanks for your citations! Commented Feb 5, 2024 at 5:18