====== USL/USG Unix ====== Originally set up to support Unix internally, the Unix Support Group eventually became Unix System Laboratories, and developed the System III and System V commercial versions of Unix. 1973:\\ [[:systems:usg_base1|USG Release 1.0]] 1974:\\ [[:systems:usg_base2|USG Release 2.0]] [[:systems:usg1|Program Generic Issue 1]] 1975:\\ [[:systems:mert_base|MERT First Edition]] 1976:\\ [[:systems:usg2|Program Generic Issue 2]] 1977:\\ [[:systems:usg3|Program Generic Issue 3]] [[:systems:pwb|PWB UNIX]] [[:systems:mert0|MERT Release 0]] 1978:\\ [[:systems:unixts|UNIX/TS]] 1979:\\ [[:systems:cb1|CB-UNIX]] [[:syste|UNIX/32V]] [[:systems:unixrt|UNIX/RT]] [[:systems:pwb2|PWB UNIX 2.0]] 1980:\\ [[:systems:sys3|System III]] 1981:\\ [[:systems:unixts4|UNIX Release 4]] 1982:\\ [[:systems:pwb5|UNIX Release 5]] 1983:\\ [[:systems:sys5|System V]]