Can an arduino read a USB 1.1 trackball?

I'm very new to Arduino/electronics and I have a basic question. I've googled extensively and just can't find an answer that I understand...

Can an Arduino read a USB 1.1 trackball?

I'm building a custom keyboard that will have an integrated trackball. The trackball brand I'm looking at offer trackballs that come in several protocols, including "quadrature", which I assume is basically two perpendicular rotary encoders, correct? This sounds ideal, as it seems it will be easy to manipulate the data to regulate sensitivity, declination, etc.

However, the model I want to use only comes in USB 1.1 and PS/2.

Can an Arduino read and process those protocols?

The model I want to use:
http://www.ermec.com/catalogos/2014/R-Series-Removable-bezel-trackball.pdf

A model offering quadrature protocol:

Thanks in advance!

If you have a USB output then you will need USB host shield for your Arduino and be lucky that some one has written the drivers for you.

A PS/2 interface is much easier to deal with. Look for how to use PS/2 type keyboards as an idea of what interface you need.

Ok, thanks for the advice, I'll look around.