These are widgets, floating little programs you have on your desktop. The first 3 are obvious, but I'm not sure what that 4th one is.

It comes with the new Macs, and for Windows you can obtain a widgets program such as Kapsules or Konfabulator.

St. Mary's University Campus - 2

Students travel from Xi'an, China to visit the University of Kentucky, 2013. Here they participate in a 3D printing technological class with Andy McDonald, Scott Horn & Nicole Sand.

The Computer Lab.

Students travel from Xi'an, China to visit the University of Kentucky, 2013. Here they participate in a 3D printing technological class with Andy McDonald, Scott Horn & Nicole Sand.