| 摘要 |
PURPOSE:To speed up data transmission and to improve certainty by simultaneously communicating multiple addresses by means of the UDP/IP system of information and independently retransmitting data by means of a TCP/IP system as to data where a reception error occurs. CONSTITUTION:A communication server computer 1 periodically receives and stores financial stock information by online from an external part. A simultaneous multiple address communication means 7 simultaneously multi-address- communicates financial stock information to respective work stations 2 of dealers, which are connected by LAN 3, in accordance with the UDP/IP system. On the work station 2-side of respective dealers, financial stock information which is periodically transmitted from the side of the communication server computer 1 is supervised and an individual communication means 8 retransmit information where the reception error occurs in accordance with the TCP/IP system from the side of the communication server computer 1 when the reception error is detected. Thus, respective work stations 2 always stores accurate financial stock information. Thus, data transmission is speeded up and certainty is improved. |
