Three Basic Types :
Three Basic Types Resistive
Capacitive
Interruptive
Resistive :
Resistive Two conductive layers that connect when touched.
Capable of multitouch.
Not affected by dust or dirt on the screen.
Good for outdoor use.
Capacitive :
Capacitive Conductive coating that emits an electric field.
Very durable
Must be touched by something conductive.
Also capable of multitouch.
Interruptive :
Interruptive A grid of waves over the screen gets interrupted at a certain point on the X axis and Y axis.
Very high clarity due to having no layers over the actual screen.
Not capable of multitouch.
Easily affected by dirt and other interference.
In Conclusion :
In Conclusion Touchscreens have been around since the 60’s.
Just recently a surge in popularity has occurred.
Accuracy and intuitiveness continues to improve.
They will definitely become more common.