Question: In which decade was the Ivel Z3 and the Prológica CP-400 developed in?
Sentence (from "Prológica CP-400"): In the middle of 1984 a Brazilian company called Prológica, which made its own versions of 8 bits US computers, brought to the Brazilian market a new equipment for its personal computer series called "CP" (shorten of Personal Computer in Portuguese).
Relevant evidence: Yes