Aperture Science Personality Constructs ( from Portal 2 ;) )

The Aperture Facility is full of them.

What is a Personality Construct?
Personality Constructs are usually referred to as Cores. They are metal spheres that can hold intelligence/personality.

Some cores
Cores Include:
 * Ender Core
 * Fox Core
 * Cheetah Core
 * Gideon
 * Primek
 * etc.