Complex sentence: In modern networks, NetBIOS normally runs over TCP/IP via the NetBIOS over TCP/IP (NBT) protocol, giving each computer in the network both a NetBIOS name and an IP address corresponding to a (possibly different) host name.
Split into simpler sentences: In modern networks, NetBIOS normally runs over TCP/IP via the NetBIOS over TCP/IP (NBT) protocol. This results in each computer in the network having both a NetBIOS name and an IP address corresponding to a (possibly different) host name.