This document discusses robots and computer control systems. It defines an actuator as a mechanical device that moves or controls a mechanism, and a sensor as a device that measures the physical environment. It explains that control is achieved by inputting data, processing it in a computer, receiving an output, and getting feedback from the output. Open loop control only considers input, while closed loop continually monitors actual position. Pseudo code uses ordinary words to logically flow a program process. Examples of computer controlled devices include washing machines, microwaves, and factory robots.

1. Robots Thep 11RA

2. Actuator An actuator is often part of a computer control system. An actuator is a mechanical device for moving or controlling a mechanism or system

3. Sensors A sensors is a device that measure a physical quality surrounding environment. A sensor is needed to send the input to other computer which will converts it into analogue.

4. How control is achieved? Firstly you need to input the data. Secondly you need to process the data that you input into the computer. Thirdly you will received the output from the process. Lastly you will get the feedback from the output.

5. Closed loop control and Open loop control OPEN LOOP Open Loop System, only looks at its input signal in order to decide what to do. CLOSE LOOP Close Loop System are used to continually monitor the actual position back to the computer.

6. Pseudo code Pseudo code is a logical flow of the program using ordinary words. Pseudo code are useful for translating the step of process from our language to the computer. E.G

7. Example of computer control Washing machines Microwave cookers Dishwashers Electric kettles Fridges Lifts Automatic doors Factory robots Traffic light systems