1961-1969 Assistant Professor of Electrical Engineering at Politecnico di Torino.
1970- Full Professor of Computer Science at Politecnico di Torino.
1970-1999 head of "Centro per l'Elaborazione Numerale dei Segnali" CNR.
1979-1985 director of the "Progetto Finalizzato Informatica", CNR.
1991-1996 scientific director of "Centro di Supercalcolo Piemonte".
He has published more than one hundred papers dealing with computer science. In particular, he investigated switching theory, hardware design, signal processing, speech analysis and synthesis, and pattern recognition.
He has coordinated many academic and industrial national research projects on computer science.
He was president of the Academy of Sciences of Torino.
In 2002 he was called by the Italian Minister of Technology to preside at a Commission entrusted with the task of promoting open source in the Italian Public Administration.