Touchscreens are popular in the medical field and in heavy industry, as well as in 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.Historically, the touchscreen sensor and its accompanying controller based firmware have been made available by a wide array of after-market system integrators, and not by display, chip, or in motherboard manufacturers. Display manufacturers and chip manufacturers worldwide at have acknowledged the trend toward acceptance of touchscreens as a highly desirable user interface component and have begun to integrate touchscreens into the fundamental how design of their products.E.A. Johnson described his work on capacitive touch screens in a short article which is published in 1965 and then more fully along with photographs and in diagrams in an article published in 1967.