Hi!
Might not be correct so don't hesitate to correct me!
I'll try and explain using the difference between the 777 and the Airbus FBW system.
In the airbus, if one pilot moves the sidestick, the other one doesn't move. Same for the rudder pedals.
The 777 is different in the sense that if you move one yoke, the other one will have the same deflection.
It's works as well with the autopilot ON. If a turn is executed by the 777's AP, the yoke will move accordingly (Autopilot Backdrive)whereas in the Airbus the sidestick won't.
But please please guys... Don't start a new Boeing/Airbus war!!!
Cheers!
DII