- Narrowband ISDN.
-
Narrowband ISDN is another name for ISDN. Narrowband ISDN offers a smaller bandwidth than the Broadband ISDN services, such as Asynchronous Transfer Mode (ATM) and Switched Multimegabit Data Services (SMDS).
- NetBEUI (NetBIOS Extended User Interface).
-
Microsoft's extended version of NetBIOS is called NetBEUI. It is a protocol that governs data exchange and network access. Because NetBEUI does not provide a Network layer, it cannot be routed in a network, which makes building large internetworks of NetBEUI-based networks problematic .
- NetBIOS (Network Basic Input Output System).
-
NetBIOS is a networking API developed by IBM that allows programs to access the network and exchange data. Because NetBIOS does not provide Network-layer services, it cannot be routed in a network, which makes building large internetworks of NetBIOS-based networks problematic. Examples of NetBIOS-based NOSs include IBM LAN Server and Artisoft LANtastic.
- NetWare Loadable Module (NLM).
-
An NLM is an application that runs on the NetWare server and coexists with the core NetWare operating system. NLMs provide better performance than applications that run outside the core .
- NetWare.
-
NetWare is Novell's network operating system. NetWare uses IPX/SPX, NetBIOS, or TCP/IP network protocols. It supports DOS, Windows, OS/2, Macintosh, and Unix clients . NetWare versions 4.x and 3.x are 32-bit operating systems; NetWare 2.2 is a 16-bit operating system.
- Network Driver Interface Specification (NDIS).
-
NDIS is a specification, developed by Microsoft and 3Com, for generic device drivers for adapter cards used by LAN Manager and subsequent Microsoft network operating systems.
- Network File System (NFS).
-
NFS is Sun Microsystems' file-sharing protocol that works over TCP/IP.
- network interface card (NIC).
-
A network interface card is the adapter card that plugs into computers and includes the electronics and software so the station can communicate over the network.
- Network layer.
-
The third layer of the OSI model is the Network layer, and it governs data routing. Examples of Network-layer protocols are IP and IPX.
- network operating system (NOS).
-
A network operating system is the software that runs on a file server that governs access to the files and resources of the network by multiple users. Examples of NOSs include Banyan's VINES, Novell's NetWare, and IBM's LAN Server.
- network.
-
A network is a system of computers, hardware, and software that is connected, and over which data, files, and messages can be transmitted and end users communicate. Networks may be local or wide area.
- network-aware application.
-
A network-aware application knows that it is running on a network and has file- and record-locking features.
- network-ignorant application.
-
A network-ignorant application has no knowledge that it is running on a network. It lacks file and record locking, and cannot guarantee data integrity in a multiuser environment.
- network-intrinsic application.
-
A network-intrinsic application knows it is running on a network and takes advantage of a network's distributed intelligence. For example, a client-server database is a LAN-intrinsic application.
- noise.
-
Noise is sporadic, irregular, or multifrequency electrical signals that are superimposed on a desired signal.