Command module

The command module was the section of a spaceship in use in the 20th and early 21st centuries which contained the primary cockpit and control area. 

In the 23rd century, the command module referred to the area of a Federation starship's bridge which contained the helm, navigation console, astrogator, chronometer, and command chair. (, SS TOS (The Sleeping God), ) The term was sometimes also used to denote a ship's or station's command center in general or a ship's primary hull. (,, , SS TNG (Final Flight))