Key points are not available for this paper at this time.
Any input device used in conjunction with a computer controlled display for interactive information exchange between man and computer must function as a position encoder. Input devices for handling two dimensional positional information can be grouped into two general types, one type encoding absolute positions and the other encoding changes in position.
A. M. Hlady (Wed,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: