Sure, Concorde was the first aircraft to fly with FBW flight controls, but electric signalling on a major aircraft system was introduced on the Proteus engines that powered the Bristol Britannia. These were of course built by the same company, Bristol Aero Engines, that built the Olympus.
There are some (I am not among them) who would say that the Concorde project was a good way to learn how NOT to run a major international collaboration