premise: Touchscreens are only used in gaming computers.
hypothesis: A touchscreen is an input and output device normally layered on the top of an electronic visual display of an information processing system . The touchscreen enables the user to interact directly with what is displayed , rather than using a mouse , touchpad , or any other such device ( other than a stylus , which is optional for most modern touchscreens ) . Touchscreens are common in devices such as game consoles , personal computers , tablet computers , electronic voting machines , point of sale systems , and smartphones . Touchscreens are found in the medical field and in heavy industry , as well as for automated teller machines ( ATMs ) , and kiosks such as museum displays or room automation , where keyboard and mouse systems do not allow a suitably intuitive , rapid , or accurate interaction by the user with the display 's content .