A robot is a machine that can be programmed or controlled to do a specific task such as walking or flying. This is usually powered by electricity and can resemble human tasks.The word robot originates from Czech republic in 1921.
Wikipedia states that a robot is an automatically guided machine which is able to do tasks on its own, almost always due to electronically-programmed instructions. Another common characteristic is that by its appearance or movements, a robot often conveys a sense that it has intent or agency of its own.
Dictionary.com defines a robot as:
1. A mechanical device that sometimes resembles a human and is capable of performing a variety of often complex human tasks on command or by being programmed in advance.
2. A machine or device that operates automatically or by remote control.
3. A person who works mechanically without original thought, especially one who responds automatically to the commands of others.
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