Touch monitors act as standard computer screens, though have the added advantage of a person being able to press directly on the screen instead of needing to use a mouse, roller ball or joystick to navigate the pointer around the screen.
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If you think of a supermarket checkout or automatic ticketing machine, they work on the same principle. There are ranges of software especially designed to be accessed by a person using a touch monitor, though these tend to be aimed at the lower end of the cognitive scale. Since pressing on a touch monitor sends the same signal to the computer as clicking the left mouse button on a mouse in the location that is being pressed, conventional software can also be used via a touch monitor. Whilst this is possible, it is no substitute for using a mouse or similar device when used in conjunction with more ‘mainstream’ software such as a word processor, this is due to this software being written to take full advantage of a mouse with both a left and right mouse button.
A touch monitor is an ideal solution for those with severe learning difficulties who don’t understand the concept of a mouse or similar pointing device or for people with very poor motor skills, where precision targeting of areas on the screen may not be needed.
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