▁machine ▁room . ▁By ▁ 1 9 7 3 , ▁Nor sk ▁Data ▁had ▁delivered ▁ 1 0 5 ▁units ▁to ▁Nor control . ▁ ▁I bb ▁H ø iv old , ▁Nor control ' s ▁chief ▁executive ▁officer ▁( CE O ), ▁was ▁appointed ▁chairman ▁of ▁the ▁board ▁in ▁June ▁ 1 9 6 8 . ▁This ▁created ▁some ▁conflict ▁of ▁interest , ▁as ▁Kong s berg ▁CE O ▁J ens ▁Christian ▁H au ge ▁sat ▁on ▁Nor control ' s ▁board . ▁For ▁ 1 9 6 8 ▁Nor sk ▁Data ▁had ▁a ▁re venue ▁of ▁N OK   7 3 0 , 0 0 0 , ▁sold ▁four ▁computers ▁plus ▁additional ▁memory ▁for ▁S AM ▁ 2 , ▁had ▁th ir teen ▁employees ▁at ▁the ▁end ▁of ▁the ▁year ▁and ▁had ▁a ▁profit ▁of ▁N OK   2 1 , 0 0 0 . ▁That ▁year ▁a ▁co operation ▁started ▁with ▁NE BB ▁to ▁develop ▁an ▁automatic ▁hydro elect ric ity ▁res er voir ▁reg ulation ▁system ▁with ▁a ▁Nord - 1 ▁at ▁its ▁heart . ▁The ▁first ▁system ▁was ▁installed ▁in ▁ 1 9 7 0 ▁and ▁remained ▁in ▁use ▁for ▁eigh teen ▁years . ▁ ▁Origin ally ▁every ▁user ▁of ▁the ▁Nord - 1 ▁c oded ▁their ▁own ▁operating ▁system ▁( OS ). ▁This ▁was ▁highly ▁in efficient ▁and ▁N D ▁decided ▁to ▁launch ▁a ▁common ▁OS . ▁Sin tr an ▁was ▁developed ▁at ▁S IN TE F ▁in ▁Tr ond heim . ▁Later ▁Sin tr an ▁II