INTRODUCTION TO THE INTRODUCTION TO THE TECHNOLOGYTECHNOLOGY

A touch screen sensor is a clear glass panel with a touch responsive surface

The sensor generally has an electrical current or signal going through it and touching the screen causes a voltage or signal change

The controller is a small PC card that connects between the touch sensor and the PC

The controller determines what type of interface/connection you will need on the PC

The driver is a software that allows the touch screen and computer to work together

Most touch screen drivers today are a mouse-emulation type driver.

Diagram showing How it Works

* Resistive Touch Screen* Capacitive Touch Screen* Surface Acoustic Wave Touchscreen* Infrared Touch Screen

Types of Touch Screen Technologies:

Resistive Touch Screen

Capacitive Touch Screen

Surface Acoustic Wave Touchscreen

Infrared Touch Screen

Public Information Displays::: Tourism displays, Trade show display

Customer Self-Services::: Stores, Restaurants, ATMs, Airline ticket terminals and Transportation hubs.

More uses... Digital jukeboxes, Computerized gaming, Student Registration systems, Multimedia software , Scientific applications etc.

Pros & ConsDirect pointing to the objects.FastFinger or pen is usable (No cable required)No keyboard necessarySuited to: novices, application for information retrieval etc

Low precision by using fingerUser has to sit or stand closer to the screenThe screen may be covered more by using handNo direct activation to the selected function

Though the touch screen technology contains some limitations it’s very user friendly, fast, accurate, easy for the novices & fun to operate. It has been widely accepted. And now by just modifying a little it can replace the mouse and key board completely in near future