The "Compute Module" line of Raspberry Pi devices have the same "guts" as their bigger siblings, just less extras, but in ways that allow them to be integrated

The "Compute Module" line of Raspberry Pi devices have the same "guts" as their bigger siblings, just less extras, but in ways that allow them to be integrated into custom solutions for, say, stereo camera photo booths for instance, instead of having just the one camera interface on the full-size Pi. They are used in some NEC commercial displays because the cool part is you get to add a small connector to the base design, and bolt on a linux computer, because the CM is just that, a full computer, designed to be integrated into cool things