Structure, Technology, and Development of the AEG-Telefunken TR 440 Computer
Eike Jessen, Dieter Michel, Heinz Voigt · IEEE Annals of the History of Computing · 2009
The computer AEG-Telefunken TR 440 was first installed in 1970 at the University of Bochum. At that time, it was the most powerful computer that had ever been developed and manufactured in Europe. As a successor of the TR 4, the TR 440 introduced paging, multiple modes of operation, multiprocessing, vastly extended memory, and satellite configurations and included innovative system software.