Difference between the gazebo plugins "ros_control" and "gazebo_ros_control"?

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As far as I know, ros_control is for controlling the robots (simulated or real ones):

• https://wiki.ros.org/ros_control,

gazebo_ros_control is one of the packages gazebo_ros_pkgs:

• https://classic.gazebosim.org/tutoria...

for adaptation of control to the simulated URDF robot using Gazebo plugins

Simulating a robot's controllers in Gazebo can be accomplished using ros_control and a simple Gazebo plugin adapter. An overview of the relationship between simulation, hardware, controllers and transmissions is shown below: