Roth was appointed associate professor at the TH Ilmenau in 1970, in the department of Technical and Biomedical Cybernetics ("Technische und Biomedizinische Kybernetik", TBK, Director: Karl Reinisch).

In cooperation with expert committees from the Chamber of Technology ("Kammer der Technik", KdT, the organization of engineers, technicians, and researchers of the GDR) and the electronics industry of Thuringia, he developed the new special field of microcomputer technology, which he also introduced as an independent subject, publishing specialized reference books in several editions.

His cooperation with other professors – one of them being in the data centre with its director, Reinhold Schönefeld[2] – led to extensive industry-level research and internship opportunities in microprocessor technology with the TH Ilmenau.

Through his committee work in the Informatics Society of the GDR and specific publications of books and magazines, he contributed to an increased appreciation of the new field of microprocessor technology in East Germany.

Roth was the founder and editor of the magazine „Mikroprozessortechnik“ at the East German publishing company Verlag Technik Berlin.

In an evening talk at a technical committee conference of the Chamber of Technology (KdT) in Angelroda in April 1982, he described the tedious processes for founding this magazine under the conditions in the GDR: For 15 years he made efforts until a small number of copies of „Mikroprozessortechnik“ were allowed to be released.

It was forbidden to use the word „Informatik“, as Günter Mittag,a member of the Politbüro of the SED considered this a term of West German ideology.

His work as co-founder of the magazine Ethics and Social Sciences ("Ethik und Sozialwissenschaften", a forum for a culture of deliberation) at the West German publishing company Westdeutscher Verlag illustrates his ability for unconventional thinking and his interest in questions concerning the future.

This professional association of professors, university lecturers and scientific assistants at universities and institutes of higher education was founded in November 1990 in Thuringia to engage employees and civil servants, where the VHW as part of the German Civil Service Federation also has the right of hearing in legislative procedures and the collective bargaining law.