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Online Computer Terms Dictionary - A

Application Protocol Data Unit

<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
 

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