Imagine a worker what can do a complicated job 24 hours a day without sleep, food or breaks. Such workers do not exist, but /robot could easily do these jobs. Robots first began as mechanical toys at the 18th century and were building to amuse wealthy people. Very simple systems for controlling machines are invented about the same time. Real robots that could be programmed perform difficult tasks were not practical until computers became available to control them in the 1960s. Since, they have become part from our everyday lives. Most robots work in factories, assembling cars and electronic equipment. While a few robots does dangerous jobssuch as exploring space, domestic robots can dean our floors and cutting the grass, and medical robots can even operations in hospitals. The latest robots even look a little bit human can copy human movements such as walking up stairs.