Abstract: A touch sensitive apparatus and method of operation to improve visual feedback and visual perception of tactile input to an operator. The apparatus includes a touch screen device or display having a touch overlay, a processor and stored program instructions in a memory in which a three-dimensional graphical image, such as a key element, is created in the apparatus and shown on the display as an input device or keypad to the processor. Each key element includes a beveled surface surrounding a flat surface. When a displayed key element is touched by a probe, such as a finger, the screen area about the displayed key element and the finger, visually enlarges or “splats” confirming the selection of the particular key.

Abstract: Provided is a method and system for displaying a list of items in point of sale transactions on a touch screen user interface by virtually adjusting the display area of a touch screen user interface. The method and system achieve the forgoing by the following steps. Detecting a selection and manipulation of the icon utilized as a virtual handle for expanding and contracting the window for displaying said list of items in point of sale transactions. Determining whether the window for displaying said list of items in point of sale transactions is in either an expanded or contracted state. If it is determined that said window for displaying said list of items in point of sale transactions is in a contracted state, enlarging the window for displaying the list of items in point of sale transactions in response to the detected manipulation of the icon utilized as a virtual handle.