provided along with a mouse or pointer device such as a track ball or trackpoint u2122 in the case of a web enabled wireless telephone a simple keypad may be provided with one or more function specific keys in the case of a pda a touch screen 18 is usually provided often with handwriting recognition capabilities additionally a microphone 19 such as the microphone of a web enabled wireless telephone or the microphone of a personal computer is supplied with the computing platform this microphone may be used for simply reporting audio and voice signals and it may also be used for entering user choices such as voice navigation of web sites or auto dialing telephone numbers using voice recognition capabilities many computing platforms are also equipped with a camera device 100 such as a still digital camera or full motion video digital camera one or more user output devices such as a display 13 are also provided with most computing platforms the display 13 may take many forms including a cathode ray tube u201c crt u201d a thin flat transistor u201c tft u201d array or a simple set of light emitting diodes u201c led u201d or liquid crystal display u201c lcd u201d indicators one or more speakers 14 and or annunciators 15 are often associated with computing platforms too the speakers 14 may be used to reproduce audio and music such as the speaker of a wireless telephone or the speakers of a personal computer annunciators 15.