Touch Screens

By Michaela Holmes

What?

A touch screen allows user commands to happen by pressing corresponding buttons on the screen. Since their introduction in the 1970s, touch screens have become popular for computer and media technology.

There are several common systems that allow for touch screens to work. Each method allows for commands to be translated by the computer as a result of touching a certain point on the screen. Many change the coordinates of the touch locations to specific actions to be taken by the system.



Different types of touch screens

So why do we have them?

Touch screens are considered useful in that they eliminate excess hardware such as computer mice and keyboards.