Originally Posted by
tdracer
No, they are not 'basically the same' - entirely different technologies, particularly in the area of system communications - communication being the pathway for a potential hack (unless were talking about someone physically loading hacked software on the ground via access to the ebay).
Well i am not going to get into an argument but the Inertial Navigation System on a 757 is an ADIRU containing a laser ring gyro - which is the same technology as used in the 777. I totally agree that the way the system talks to each other is different but the basic system architecture for INS, GPS, ACARS etc etc is not that different.