What's the difference between electronic throttle and cable throttle?

Electronic throttle body is a new generation product. According to the accelerator pedal and intake data, ECU (Engine Control Unit) requires the throttle body to open, thus adjusting the intake.

The traditional cable throttle, namely the mechanical throttle body, controls the opening of the throttle body through the steel beam of the accelerator pedal, that is, the deeper the pedal is stepped, the more cables are pulled, the greater the opening of the throttle body and the more air intake. Because it is only linear and the air intake cannot be accurately controlled, it is gradually eliminated at present.