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You are missing Coherent in this picture

Would love to see a Linux history poster. I imagine it would look like at 1000 node binary tree or something similar :-)

Two missing versions I can think of are SGI’s IRIX and DEC Ultrix

An alternative, more complete diagram, can be found here: http://www.levenez.com/unix/

yes, Levenez’s diagram is the most complete around

btw, for ITALIAN Unix fans, you can refer to http://www.unixportal.net :)

You’re missing the girl in the wet t-shirt in this picture.

Don’t forget UNICOS, and I never knew much about OpenVMS, but wasn’t that POSIX-compliant, too?

VMS had Unix compatibility but isn’t Unix.
OSF/1, and Tru64 aren’t there, both DIgital products of old…

SGI Irix missing!