HAND HELD DATA PROCESSING APPARATUS HAVING REDUCED POWER CONSUMPTION

摘要

A data processing apparatus according to the present invention comprises: a data input unit (3) for input of external data; a first processing unit (1) for processing the data inputted through the data input unit; a second processing unit (98) for processing the data inputted through the data input unit and/or an output data of the first processing unit; and a display unit (99) for displaying an output data of the first and/or second processing units, wherein the display unit has a memory function (82) for keeping a display state without being energized, and the first processing unit has a means (6) for actuating the second processing unit according to a timing regime or the kind of the input data. Such apparatus reduces power consumption without affecting the required data processing operations.