The 25th International Congress of History of Science and Technology will take place in Rio de Janeiro, Brazil, from 23 to 29 July 2017. The HaPoC Commission will be present with a Symposium organised by Fabio Maia Bertato, Henrique Cukierman, Flavia Marcacci and James Sumner. The Symposium is titled “The Ubiquity of Computing: historical and philosophical issues”. Details are available at