Modular avionics system of an aircraft

A modular avionics system of an aircraft, comprising:

• a plurality of cabinets arranged at various locations in the aircraft and interconnected in a network,
• wherein each of the plurality of cabinets comprises:
• a first and a second core processor modules (CPM1, CPM2) comprising a first and a second parallel processor, respectively;
• and
• at least a first and a second input/output modules (IOM1, I0M2) configured to serve as interfaces to a plurality of systems to be controlled, and to serve for the control and intermediate storage of the data flowing into or out of the plurality of cabinets, said plurality of systems comprising sensors, actuators and buses of the aircraft;
• wherein each of the first and second core processor modules (CPM1, CPM2) communicates independently, by way of a plurality of unidirectional separate direct data lines, with each of the first and second input/output modules and with the other of the first and second core processor modules;
• wherein in each of the first and second core processor modules, a plurality of independent system programs work under the control of a first and a second operating system, respectively;
• and
• wherein the plurality of cabinets are configured to be used for controlling and/or processing signals that are transmitted from and/or to the first and second parallel processors and one or more of the plurality of systems.