ARBI (Arbeitsgruppe RechnerBetrieb Computing Science) is an institution of the Department of Computing Science that provides and maintains server and client systems with the necessary hardware and software equipment, which form the necessary infrastructure for the practical training of Computing Science students. In addition to this main task, special services are provided for the Computing Science departments. These include, for example, the operation of various types of servers, network services and advice on hardware and software, network and procurement issues.