The Neumann University campus has three different models of Optiplex All-in-One Desktops (Optiplex 5250, 7450, and 7460).
The first two are model [Optiplex 5250, 7450] are basically the same in design with the webcam in the upper center portion of the bezel. There is also a privacy slider on the top of the bezel. The other model (7460) has the webcam placed within the computer itself, it pops-up when you gentle press the top center portion of the bezel.
See attached pictures for reference.
Optiplex 5250, 7450