What role did the bridge of warship compass play in the naval battles of World War I and World War II? How does he work?

Compass, to put it bluntly, is what we call a compass, but after the industrial revolution, various new things came out, and magnetic compasses and gyro compasses appeared. The former is simple and reliable, while the latter is convenient and accurate to use. Installed on the bridge, it is nothing more than providing sailors and captains with the position information of the ship. In the early days, there was no GPS, so we could only determine the position of the ship by calculating the speed of the ship, and then use the compass and sextant to locate the ship. One person is not allowed, and often a group of people are busy; In addition, there is no electronic chart, and everything should be marked on the big picture, which takes up a lot of space; So it is not surprising that a place has been set up for them on the bridge.