| 摘要 |
<p>PURPOSE:To improve the degree of input freedom of transaction data by superimposing and displaying a message picture without destroying a picture for displayed transaction data input when the display request of a message is issued. CONSTITUTION:When output data shows the message, a message picture display means 5 generates the picture to be displayed by superimposing without destroying picture data being displayed, and superimposes and displays a message picture on a screen device 201. Also, a picture input/output means 4 generates the picture for transaction 101 input/output from the output data whose output is requested, and displays it on the screen device 201. When the erasure of the message to be displayed is requested, a message erasure means 6 erases only the message picture. Thereby, no output of picture data for transaction data input after displaying the message is required, and the amount of data to be transmitted to a terminal can be reduced, which shortens the input/ output time of a transaction to the terminal.</p> |
