Give a brief introduction to robotics?

Basically, robots have their specific aim. As they manipulate the objects. For Example- by perceiving, picking, moving, modifying the physical properties of an object.
What are Robots?
Generally, robots are the artificial agents acting in the real world environment. Robotics is a branch of Artificial Intelligence. That is composed of Electrical, and Mechanical Engineering. Also, Computer Science for designing, construction, and application of robots.