User`s manual

THE TOUCH SCREEN INTERFACE
A touch screen is, as it says, touch sensitive. A light touch of your fingertip on
the displayed icon activates the icon’s function. We have found that a clean
display with just the necessary information, and with symbols instead of text,
makes it much easier to understand, and reduces the input errors from the
user to a minimum. The user interface is based upon icons and fill-in boxes.
Touching a fill-in box activates a numerical or an alphanumerical keyboard
depending on the program you are in. Active, or touchable icons and fill-in
boxes, have a grey background.
To get the best visibility it has been necessary to use glass in the touch
screen. It is therefore important that you just touch the screen with a light
touch of your fingertip or a pointed (but not sharp) object.
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