term inal ▁system ▁connected ▁via ▁X . 2 1 / X . 2 5 ▁based ▁X MS G ▁and ▁a ▁flight ▁sim ulator ▁back bone ▁for ▁the ▁F - 1 6 ▁were ▁delivered . ▁In ▁ 1 9 7 8 ▁Nor sk ▁Data ▁both ▁bought ▁T and berg ▁and ▁launched ▁its ▁office ▁suite ▁Not is , ▁although ▁T and berg ▁was ▁sold ▁again ▁in ▁ 1 9 8 0 . ▁N D ▁became ▁the ▁first ▁foreign - list ed ▁Norwegian ▁company ▁in ▁ 1 9 8 1 , ▁which ▁also ▁saw ▁the ▁launch ▁of ▁the ▁ 3 2 - bit ▁N D - 5 0 0 . ▁Through out ▁the ▁ 1 9 8 0 s ▁N D ▁acquired ▁a ▁series ▁of ▁domestic ▁and ▁foreign ▁hardware ▁and ▁software ▁companies , ▁many ▁lo os ely ▁orient ed ▁at ▁increased ▁hardware ▁sales . ▁At ▁the ▁peak ▁in ▁ 1 9 8 6 ▁and ▁ 1 9 8 7 , ▁Nor sk ▁Data ▁had ▁ 4 , 5 0 0 ▁employees , ▁ 2 . 5 ▁billion ▁Norwegian ▁kr one ▁( NO K ) ▁in ▁re venue ▁and ▁was ▁Norway ' s ▁second - larg est ▁company ▁by ▁market ▁capital ization — h aving ▁increased ▁fifty - fold ▁between ▁ 1 9 7 7 ▁and ▁ 1 9 8 5 . ▁ ▁Despite ▁late ▁attempts ▁to ▁develop ▁N d ix , ▁N D ▁never ▁succeeded ▁at ▁entering ▁the ▁Unix ▁market ▁which ▁started ▁to ▁domin ate ▁in ▁the ▁late ▁ 1 9 8 0 s . ▁The