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Advanced Program-to-Program
Communication
IBM Systems Network Architecture (SNA) system software that
allows high-speed communication between programs on different computers in a
distributed computing environment. APPC establishes and tears down connections
between communicating programs, and consists of two interfaces. A programming
interface and a data-exchange interface. The former replies to requests from
programs requiring communication, the latter establishes sessions between
programs. APPC runs on LU 6.2 devices. See also LU
6.2.
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