What I learned about exposure

I learn about Exposure triangle, It has 3 things. Aperture, Shutter speed, ISO speed. The shutter speed it has two things, slow and fast. The aperture setting lens a camera big to small. ISO speed has two things which is high and low. so I learn they are types of all things in camera to make it quality look good. The camera have types of all things like slow fast high and low.