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A robot is a machine that performs a task or variety of tasks automatically (without the direct control of a person) following a program.

A program is a list of orders (commands). Robots perform their tasks by following that list.

When a robot is simple, we call it automatism. "Programmable robots" or "programmable automatisms" are those for which we can change the program (software) so th

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Actuator (arm): most robots are "robotic arms" which work in production lines. the actuator has a "manipulator" and a system of articulations.

Power system: the power system generates the power necessary to move the arm and the manipulator of a robot.

The controller: is the microprocessor that receives the signals (data) from the sensors, "decides" what the actuators must do, and then "tells" the actuator and the articulations of the arm when to move or stop.

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Depending on the coordinate system:

-Cartesian coordinates

-Polar coordinates

Depending on the degrees of freedom: The degrees of freedom are the number of axis along which the robotic arm can move, or around which the arm of the robot can rotate.

Depending on the energy used:

-Hydraulic

-Pneumatic

-Electric

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It's hard to say exactly when robotics began.

In the first half of the 20th century, robots that worked with relays were first used. These automatisms were simple but functional.

Modern robotics started with the development of microchips in the second half of the 20th century. Thanks to the microchips.

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Most robots "work" on production lines, especially where the activity is repetitive, dangerous or tiring.

Robots are generally used if they have one or more of the following advantages:

-More economical than a person

-Faster than a person

-Can work 24 hours a day

-Produce better quality

-Can work in dangerous places

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Artificial intelligence: is the capacity of the microprocessor to "learn from experience". The microprecessor can decide that:

-In the morning, the lift will "wait" on the ground floor.

-In the afternoon, the lift will "wait" on the 5th floor.

Nano robots: These robots have many potential applications, particularly in the field of medicine. Nano robots could, for example, travel along human veins and un-block a blocked bein