Robot

Robot
is drawn from an old Church Slavonic word, robota, for “servitude,” “forced labor” or “drudgery.” The word, which also has cognates in German, Russian, Polish and Czech, was a product of the central European system of serfdom by which a tenant’s rent was paid for in forced labor or service.
The word robot was coined by artist Josef Čapek, the brother of famed Czechoslovakian author Karel Čapek.
As a word, robot is a relative newcomer to the English language. It was the brainchild of a brilliant Czech playwright, novelist and journalist named Karel Čapek (1880-1938) who introduced it in his 1920 hit play, R.U.R., or Rossum’s Universal Robots.
The robots in this play were not what we would call robots today, and they weren’t made of steel, plastic, and lines of code. Those robots were manufactured as pseudo-organic components out of a substance that acted like protoplasm in a factory, then “assembled” into humanoids.

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Can Robots Replace Humans?

Yes, robots will replace humans for many jobs, just as innovative farming equipment replaced humans and horses during the industrial revolution. Robots can do everything people can do, but many, many times faster — so why not take the people.
A robot is a machine—especially one programmable by a computer—capable of carrying out a complex series of actions automatically. A robot can be guided by an external control device, or the control may be embedded within.
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Robotics is an interdisciplinary sector of science and engineering dedicated to the design, construction and use of mechanical robots. Our guide will give you a concrete grasp of robotics, including different types of robots and how they're being applied across industries.

The branch of technology that deals with the design, construction, operation, and application of robots, as well as computer systems for their control, sensory feedback, and information processing is robotics. These technologies deal with automated machines that can take the place of humans in dangerous environments or manufacturing processes, or resemble humans in appearance, behavior, or cognition. Many of today's robots are inspired by nature contributing to the field of bio-inspired robotics. These robots have also created a newer branch of robotics: soft robotics. Robotics is the engineering discipline dealing with the design, construction, and operation of robots.

The word robotics first appeared in Isaac Asimov’s science-fiction story Runaround (1942). Along with Asimov’s later robot stories, it set a new standard of plausibility about the likely difficulty of developing intelligent robots and the technical and social problems that might result. Runaround also contained Asimov’s famous Three Laws of Robotics:

• 1. A robot may not injure a human being, or, through inaction, allow a human being to come to harm.
• 2. A robot must obey the orders given it by human beings except where such orders would conflict with the First Law.
• 3. A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.

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Source: Few websites, Wikipedia...