Briefly describe the different types of joints in robotics.

The different types of joints in robotics are:

1. Prismatic Joint: A prismatic joint is also known as a sliding or linear joint. It allows the links of a robot to move linearly along an axis without rotating. It is used in applications requiring precise positioning and extension.
2. Revolute Joint: A revolute joint is also known as a rotational or hinge joint. It allows links of a robot to rotate around a fixed axis, providing angular movement similar to a human elbow or knee.
3. Spherical Joint: A spherical joint is also known as a ball-and-socket joint. It allows rotational movement in multiple directions around a single point, providing three degrees of freedom such as pitch, yaw and roll.