Comment Re:It's not NeXTStep (Score 3, Informative) 35
tl;dr it seems like it's been different things at different times, officially, and that NeXTSTEP has been used for a long time.
From the Wikipedia page, this 0.9 release doc lists "NextStep" as a registered trademark.
https://vtda.org/docs/computing/NeXT/NeXT%200.9-1.0%20Release%20Description.pdf
Some CD images show all caps:
Some show mixed:
https://wagtail.cds.tohoku.ac.jp/coda/topics/nextstep/index.html
1.0 manual goes with "NEXTSTEP":
https://dn710300.ca.archive.org/0/items/NeXTSTEP_User_Guide_1994/NeXTSTEP_User_Guide_1994.pdf
1993 book uses "NeXTSTEP"
https://simson.net/ref/1993/NeXTSTEP3.0.pdf
This marketing flyer uses "NeXTSTEP"
http://www.kevra.org/TheBestOfNext/NeXTProducts/NeXTSoftware/NS-Release3/files/page625_1.pdf