Our guess is that it will, not in that your UNIX clone in twenty years will be identical to the one you have now, but the things that have kept it relevant for 50 years will continue to do so for ...

fearing that the two companies would dominate Unix, so HP, DEC, and other vendors started their own standardization effort. They called this effort the Open Software Foundation. AT&T formed Unix ...

Unix was developed as a command line interface in the early 1970s with a very rich command vocabulary. DOS followed more than a decade later for the IBM PC, and DOS commands migrated to Windows.