Write short notes on Prismatic Joint (with reference to robotics).

A prismatic joint, also known as a sliding or linear joint, allows the links of a robot to move linearly along an axis without rotating. This type of joint facilitates linear motion by changing the distance between connected parts, making it essential for extending or retracting movements. It provides a single degree of freedom, allowing movement in one linear direction. The motion is controlled by linear actuators such as hydraulic or pneumatic cylinders or motors. These joints are widely used in applications that require precise positioning and extension, such as in robotic arms, SCARA robots and automated material handling systems.