1. A method for storing and outputting data, which comprises the steps of: storing the data in a memory; loading a predetermined quantity of the data from the memory into a buffer memory by the steps of: determining a predetermined number of selected data of the predetermined quantity which is intended to be output first; and loading the selected data into the buffer memory temporally before loading remaining data of the predetermined quantity; outputting the selected data from the buffer memory through an output unit; and outputting the remaining data from the buffer memory through the output unit.