The historic basis for the university's role as an economy and research motor was the interaction with Philips. The university was founded primarily to address the need of Philips for local personnel with academic levels of education in electronics, physics, chemistry and later computer science. Later that interest spread to DAF and Royal Dutch Shell (which became the primary employer for graduates of the chemistry department). There was also a synergy with these companies in that senior personnel were hired from them to form the academic staff of the university (which led to the Eindhoven joke that the university trains the engineers and Philips trains the professors).