<networking> (APDU) A packet of data exchanged between two
application programs across a network. This is the
highest level view of communication in the OSI seven layer
model and a single packet exchanged at this level may
actually be transmitted as several packets at a lower layer as
well as having extra information (headers) added for routing
etc.
(1995-12-19)
Nearby terms:
application program « Application Program Interface « Application Programming Interface « Application Protocol Data Unit » Applications Development Manager » application server » Application Service Element