OpenTP1 Version 7 Programming Guide
OpenTP1# application programs (UAP: User Application Program) are created to perform online transaction processing for communication among the mainframe, workstations (WSs), personal computers (PCs), and distributors connected through a network (LAN or WAN).
Three communication modes are available with OpenTP1 UAPs:
The figure below shows the positions of OpenTP1 and UAPs in the network.
Figure 1-1 OpenTP1 and UAP positions in network
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