_mirrored from [iserverd](http://iserverd.khstu.ru/oscar/terms.html)_
-`BOS`: Basic OSCAR Service. This term refers to the services that form the core of the Instant Messenger service. These services include Login/Logoff, Locate, Instant Message, Roster management, Info management and Buddy List
-`FLAP` is a low-level communications protocol that facilitates the development of higher-level, record-oriented, communications layers. It is used on the TCP connection between all clients and servers.
-`SNAC`: A SNAC is the basic communication unit that is exchanged between clients and servers. The SNAC communication layers sits on top of the FLAP layer.
-`TLV`: Type Length Value. A tuple allowing typed opaque information to be passed through the protocol. Typically TLV's are intended for interpretation at the core layer. Being typed, new elements can be added w/o modifying the lower layers.
-`ICBM`: Inter Client Basic Message. ICBM is a channelized client-to-client mechanism. Currently the most user visible channel is used for Instant Messages.