An IBM protocol (and packet structure) that provides several networking functions. NetBIOS was developed by IBM and Sytek to supplement and work with BIOS in PC-DOS-based, peer-to-peer networks. NetBIOS protocol provides transport, session, and presentation layer function equivalent to layers 4,5, and 6 of the OSI model. The NetBIOS software that is used to implement this protocol is the NetBIOS interface.
