Abstract:
A data processing system which consists of individual, essentially highly integratable, storage structures, which are linked with each other by means of a bus system, without the use of connecting, unordered logic circuits, and which perform the functions of the system control. The data processing system is composed of independent control units; the actual system control (CPU), and the individual controls (CON) associated with the Input/Output devices. A common bus system is employed for data and signal communication between the units. All these controls have identical circuitry, differing from each other only by the specific microprogram used. Logic personalization of the individual controls is ensured by their specific microprogram or by their table stored in read-only storages. A central control within the individual control units is not used, since a part of the operation code in each function unit is separately decoded.