A touchscreen is a computer device that works by touching the screen surface with a finger or with a device attached to it rather than typing a keyboard or mouse. Based on light-emitting technology. The placeholder on the surface of the display is a frame around it. The frame is mounted and covered behind the infrared emitting edge At the touchscreen user interface interacts with the computer system by touching the icons or links on its screen, most of which are simple, intuitive and easy to use with the device. Fast PC input is widely used in life such as: - Public Information System - System of hotels, restaurants - Services that customers self-service - Automation / Control System - Programming, game design for activation for consumer brands