Touchscren is well known high-tech electronics, A touchscreen is an electronic visual output that can detect the presence and location of a touch within the display area.
Projective capacitive touch, also as projective-capacitance touch screen is the technology that use the reflective technology to install the capacitive sensors on the rear side.
A fanless box IPC is a computer that uses a passive cooling system to dissipate heat, instead of an internal fan which will generate new problem when solved one or not.