PURPOSE: To improve the screen display information of a telephone terminal in a telephone network on-line information system by performing control for the transmission and display of screen data of the telephone terminal at a computer device side.
CONSTITUTION: A computer device 3, when receiving a (display request of screen data) S1 from the telephone terminal 1, refers to an accumulation requirement/ overwrite feasibility managing table 5 in accordance with the number of the screen data by an analysis/execution part 6, and confirms the requirement of the accumulation of the screen data that is a display object in memory 1b. When no accumulation is required, the data is directly displayed on a display screen 1a. When the accumulation is required, a memory state managing table 4 is referred, and it is confirmed whether or not the screen data that is the display object is already accumulated in the memory 1b. When it is accumulated, a message (screen display instruction from memory in which data is already accumulated) S3 is transmitted, and the screen 1a of the memory 1b is displayed on the terminal 1. While, when no data is accumulated, the screen data is transmitted and accumulated, then, it is displayed.
ITO MASAYUKI
MIKAMI YOSHITAKA
ITO HISAYASU
