Yes, MAC OS dock came from NeXT, but by default NeXT did not center it on the bottom, the article said middle-aligned. The only one I remembered doing that did

Yes, MAC OS dock came from NeXT, but by default NeXT did not center it on the bottom, the article said middle-aligned. The only one I remembered doing that did that by default is CDE, not NeXT. Someone else brought up RiscOS. By your logic, I could say Xerox Alto was the first if a launcher could be added and centered at the bottom manually :)