T.A.C. (Tomografia Assiale Computerizzata) is a post-industrial, experimental and electronica group from Cagliari, Italy. The project was formed in Parma, Italy, in 1981, with five members, Andrea Azzali, Simon Balestrazzi, Giorgio Barbuti, Fabio Cortesi and Giampaolo Terenziani. The name is the Italian for the medical imaging device Computed Tomography (CT).
The group was originally known for making a crossover between experimental music and avant rock, involving treated tape loops, custom built synthesisers and metal sheet percussion on one side and guitar, bass and drums on the other.