Original text by Jecel Mattos de Assumpçao Jr, 1998.

Rainer Brockerhoff, who also participated in the Unitron 512 project, provides additional background at Low End Mac.

More about Brazil’s reserved market policy, a.k.a. the National Policy of Informatics.

More about Jecel’s projects in this 2019 presentation about SmallTalk-oriented hardware and the Merlintec website.

Our Friend The Computer discusses the political and financial circumstances surrounding the Unitron 512.

As so often happens in weird corners of the Internet, people have somehow obtained copies of Unitron’s ROMs and put them under the microscope.