John Brooks read Natural and Electrical Sciences at St. Johns' College, Cambridge before joining Elliott Automation in 1964 at the beginning of his industrial career in computing and telecommunications. For many years, he has been a student of the history of technology. His first paper, on circular dividing engines, was published in 1992, when he also joined the Department of War Studies, King's College, London as a part-time post-graduate student. He has since published a number of articles on naval fire control and, after retirement, was awarded his doctorate in 2001.