Abstract: A telecomputer system for processing data from a plurality of subscribers, maintaining its own integrity and operability, and establishing communication between various points in the system, comprises a pair of shared communication paths establishing two main lines of communication and two control units connected to the two control paths. A shared information memory is also connected to the two shared paths. The shared memory is also connected by separate pathways to each of the control units. An information and control console is connected to the control units for accepting and providing information and display for an operator.