4 ms·
z/OS is legally UNIX. So's HP-UX and Solaris (probably not any of the Open Source variants, however). None of the Open Source BSDs qualify as UNIX, however.
by cbd1984 11y ago
z/OS is legally UNIX.
So's HP-UX and Solaris (probably not any of the Open Source variants, however).
None of the Open Source BSDs qualify as UNIX, however.