The A350 continues the trend toward integrated modular avionics by hosting more functions inside hub computers, made by Thales and known as core processing input/output modules (Cpiom). This architecture eliminates several stand-alone line replaceable units (LRU), thereby reducing volume, weight and power consumption. An Arinc 653-standard operating system, with both space and time partitioning, allows various software applications of different certification or design assurance levels to be ...


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