COBRA and NCE/UFRJ kept developing, and tried to convince the Brazilian government to prohibit the further entrance of AT&T UNIX into Brazil, since the operating systems they developed, (COBRA and Plurix), were similar to AT&T's and could do the same things.
COBRA and NCE/UFRJ persisted in their efforts to convince the Brazilian government to block the introduction of AT&T UNIX, as they believed their own operating systems (COBRA and Plurix) were competitive and capable of performing the same tasks.