A robot almost can take the place of a human, the only difference is that humans have control and robots are controlled. In our world today many new robots are arising to make everything better and to simplify our everyday tasks. The word robotics refers to the study and use of robots. The first industrial modern robots were the unimates developed by George Devol. These robots can be programmed to do a sensor function, 3-D mapping of perceptual space, etc.
Many robots come with ample battery power to run the onboard systems autonomously for hours.
This is a report on the Mars pathfinder Landing site. It tells us what they have found so far. This little robot conducts experiments and sends it down to earth. This is called the Sojourner Roici. Although robots can't do every type of job, they are certain task robots do very well.