| 摘要 |
<p>PURPOSE: To reduce the load of a CPU and communication load by reading out picture display data from a display data file when a double sided display instruction is written in a common file of each slave terminal and displaying a picture on the slave terminal itself. CONSTITUTION: A common file 24 for each slave terminal 22 is used by a master terminal 21 and the slave terminal 22 in common. A picture display controlling means 23 receives a picture display instruction from a user by the master terminal 21 or automatically generates a picture display instruction, reads out picture display data from a display data file 20 in accordance with the picture display instruction to display a picture on the master terminal 21 and writes the picture display instruction in the common files 24 of respective slave terminals 22. A picture display means 25 monitors the common file 24 included in the corresponding slave terminal 22, and when the picture display instruction is written from the master terminal 21 to each common file 24, reads out the picture display data from the file 2O according to the picture display instruction and displays a picture on the slave terminal 22.</p> |
