APPC

Advanced program-to-program communication (APPC), also known as LU 6.2, is software that enables high-speed communications between programs on different computers, from portables and workstations to midrange and host computers. APPC software is available for many different operating systems, either as part of the operating system or as a separate software package.

APPC is a communications protocol that enables programs on different computers to talk to each other. APPC provides the interface between the programs and the networking hardware and software and defines the rules that programs use to exchange information.

APPC serves as an interface between application programs and the network. When the communications application on your workstation passes information to the APPC software, APPC takes the information and sends it on to a network interface, such as a Token-Ring adapter card. The information travels across the network to another computer, where the APPC software receives the information from the network interface. APPC puts the information back into its original format and passes it to the corresponding communications application.

Refer to Emulator User's Reference for more information.