What are physical devices?

A physical device is something you can touch and use, just like your toys or your favorite pencil.

Imagine you have a toy car. When you push it, it moves across the floor. That toy car is like a physical device, you use it with your hands, and it does something real. A physical device isn’t invisible or imaginary; it’s made of things like plastic, metal, or even paper.

Some physical devices need help from other parts to work. For example, a remote control is a physical device, but it needs batteries inside to send signals to the TV. The remote is what you hold and press, that's your part of the fun!

Other devices might be bigger or even automatic. Think of a fridge, you open it, put in food, and it keeps things cold all by itself. That’s still a physical device, because you can touch and use it every day.

So, whether it's a toy, a phone, or a robot, if you can hold it, press buttons on it, or see it doing something real, that’s a physical device!