1. A combined hand-held optical scanner and X-Y movement transducer apparatus, comprising: (a) a housing suitable for hand-held use by an operator; (b) means contained within said housing for selectively optically scanning images appearing on a surface and providing electrical image signals representative of said images for image acquisition in response to a first enable signal; (c) means for selectively sensing the relative motion of said apparatus and providing electrical movement signals indicative of the relative motion of said housing relative to an X-Y coordinate system in response to a second enable signal; and (d) operator controlled function control means for selectively generating said first or second enable signal for selectively actuating only said optical scanning means or only said motion sensing means to selectively operate said apparatus in a first state wherein said hand-held apparatus is employed only in an optical scanning function or in a second state wherein said hand-held apparatus is employed only in an X-Y motion sensing function.