Touch Screen

This device works in a similar way to the light pen. Signals are sent whenever the user touches any position on the screen to execute a particular instruction.

 

A finger or pen can be used as with map kiosks in shopping centres and pen-based computers respectively.

Touch screens are easy to use, because of this we call them user friendly, and usually found in most public areas, like ATMs.

With some smart phones, portable media players, and other personal mobile devices, you can touch the screen to perform tasks such as dialing telephone numbers, entering text, and making on-screen selections. Many handheld game consoles also have touch screens.

 

Kiosks, which are freestanding computers, usually have touch. For example, travelers use kiosks in airports to print tickets ordered online and in hotels for easy check in and check out.

A recently developed touch screen, called Microsoft Surface, is a tabletop display that allows one or more users to interact with the screen using their fingers or hands. The Microsoft Surface display also allows devices that are not digital, such as an everyday paintbrush, to be used as an input device. 

Restaurants, hotels, and other businesses plan to provide Microsoft Surface tables to improve operation and services.