Final answer:
In a fly-by-wire system, tabs on the control surfaces such as rudder and ailerons help the pilot maneuver the aircraft. The pilot's controls are converted into electrical signals processed by flight control computers, which in turn move the actuators and tabs to control the aircraft.
Step-by-step explanation:
The tabs that help a pilot move the control surfaces are part of an aircraft's fly-by-wire system. These tabs are essentially small, secondary controls attached to the primary flight control surfaces, such as the rudder, ailerons, and elevators. In a fly-by-wire system, a pilot's inputs are converted into electrical signals, which are then processed by the aircraft's flight control computers.
The computers determine the appropriate response and send electrical signals to actuators attached to the control surfaces. These actuators move the control surfaces, as well as the tabs, which fine-tune the surface movements to optimize aircraft performance and efficiency.