... 42", 46", 55", 65", etc, support any existing OS system.2. Optional touchscreen: 4-wire/5-wire Resistive, Infrared, ... days per week.6. Applicable to multimedia teaching, surveillance system, gaming machine, etc. educational, industrial or entertainmental areas. ... in the fields of security monitoring, traffic control center, broadcasting system, military, city square, shopping mall, bank, school and ...