Network Address Translation. The translation from a private IP
address to a public IP address or vice versa. NAT was designed to
overcome the lack of IP (version 4) addresses and to represent
a private network as a single entity in a public network like
Internet.
Also see IPv6.
NetBIOS Extended User Interface. An evolution of NetBIOS that
can run over routable protocols such as TCP/IP. Used in earlier
network operating systems, such as Windows NT and Netware.
The interface between a computer and a network. It functions
to convert a computer message (binary stream) into electrical
or optical signals for transmission across a network. It is
identified in the network through its MAC address.
Network adapter can be in the form of an NIC that is housed inside a PC, a PC Card that is inserted into
a PCMCIA slot in a notebook, a CF card for PDA, or an
external USB adapter. Ethernet network adapter is usually built-in
in new motherboard products.
Also see NIC and
MAC address.
Layer 3 in the OSI model. The Network Layer is responsible to
make sure that packet is sent to its destination within an
acceptable time period. Routing and addressing are performed in the Network
Layer. IP, IPX, AppleTalk are examples of Layer 3 protocols.
Also see OSI model.
Network Interface Card. A printed circuit board that is
usually inserted into a PCI slot in a computer and used for connecting a
computer to a network. Most popular NIC is Ethernet card for
connecting a PC to an Ethernet LAN or to a broadband modem/router. NIC
operates at Layer 1 of the OSI model.
Non Line-of-Sight. Refers to a condition in wireless
communication where a signal arrives at the receiver through
reflections, scattering, and
diffractions.
Also see LOS.