Turns out Arduino has no O/S.
Ignorance, as they say, is curable, so I took a week off and got acquainted with this little beast. One of the projects I was interested in trying was using a device that combines an accelerometer and a gyro in a single chip to manipulate a 3-d graphic image.
If you want to give this a try, start with the instructions and links here from YouTube user PlyAlex.
There are tiny Arduinos and this chip uses very little power, so making cat-compatible projects are practical.
My poor cats. :)