Service Access Point

from The Free On-line Dictionary of Computing (8 July 2008)

Service Access Point

   <networking> (SAP) The {OSI} term for the component of a
   network address which identifies the individual application on
   a host which is sending or receiving a {packet}.

   {TCP/IP}'s equivalent term is "{port}".

   Different SAPs distinguish between different services or
   applications on a host, e.g. {electronic mail}, {FTP}, {HTTP}.

   (1996-12-23)