Some statistical analysis of design data.- Line service times and utilization.- First concepts and relations of queuing theory.- A first resuot on the single-server queue.- A general result on the single-server queue.- Termina systems with polling.- Some results on queues with priority disciplines.- Some applications of Markov processes.- Core buffer requirements.- Service times of direct-access storage devices.- Queuing for data accesses.- Final remarks on the computer center analysis.- Imbedded Markov chains of some queuing processess.- Limit utilization and wait time distribution.