According to Pascal's principle, how does pressure applied to a confined fluid behave?

Pascal's principle states that pressure applied to a confined (enclosed) fluid is transmitted equally and undiminished in all directions throughout the fluid. This is the basis of hydraulic systems: a small force applied to a small piston creates pressure that acts on a larger piston, producing a larger force — which is how hydraulic jacks, car brakes, and lifts multiply force. Because liquids are nearly incompressible, they transmit pressure efficiently. Understanding that confined fluids transmit pressure equally in all directions, and how this enables hydraulic force multiplication, is central to the fluids topic.