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Key Words -

Sensor - can detect the temperature or composition of something that's being manufactured

Analogue - Something that bears an analogy to something else.

Digital - Expressed in discrete numerical form, especially for use by a computer or other electronic device

Analogue-to -digital converter - device for converting analogue signals into digital signals

Actuator - One that activates, especially a device responsible for actuating a mechanical device, such as one connected to a computer by a sensor link.

Feedback loop - The section of a control system that allows for feedback and self-correction and that adjusts its operation according to differences between the actual output and the desired output.

Robot - are computer-controlled machines that carry out physical tasks for us.

Quick test -

Now, for knowing if you understand this information properly you should do:


1_ What is a control program ?

2_ What sort of data does a sensor normally detect ?

3_ What is a feedback loop ?

4_ What is an actuator ?

Control Programming -

For a computer to control a situation, it must be given instructions. There are plenty of ways of doing this. One way is to use simple instructions to guide a robot around the floor.

Robots -

Robots are computer-controlled machines that carry out physical tasks for us.


Most robots are special purpose, like those which paint or weld cars on a production line.


Robots are often given their instructions by an embedded system rather than a general purpose computer.