What is the difference between a master cylinder and slave cylinder?

What is the difference between a master cylinder and slave cylinder?
The primary difference between a master and a slave cylinder is which one make the other one work. We operate the master cylinder to make the slave cylinder work. The master cylinder on a hydraulic clutch is actuated by pushing on the clutch pedal. The hydraulic pressure then makes the clutch slave cylinder move and it pushes out to give the throw-out arm a shove. This will disengage the clutch from the flywheel (by actuating the pressure plate). Answer the master cylinder is on the fire wall its the main one, when you push on the brake pedal down it pushes on a rod in the master sylinder. the wheel cylinders (slave) are on the dram drums. they push the brake shoes to the drum