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NAVIGATION BAR
A navigation bar (also known as a links bar or link bar) is a sub region of a web page that contains hypertext links in order to navigate between the pages of a website.

NCSA
This is the abbreviation for National Center for Supercomputing Applications at the University of Illinois in Urbana-Champaign.
NFS
The abbreviation for Network File System, NFS is a protocol suite developed and licensed by Sun Microsystems that allows different makes of computers running different operating systems to share files and disk storage.
NIC
The abbreviation for Network Information Center, NIC is an organization responsible for supplying information for component networks that comprise the Internet.
NOC
The abbreviation for Network Operations Center, NOC is the organization responsible for the day-to-day operations of the Internet's component networks.
Node
A device attached to a network. A node uses the network as a means of communication and has an address on the network.
NREN
The abbreviation for National Research and Education Network, NREN is an effort to combine the networks operated by the U.S. government into a single high-speed network.

Netiquette

Informal set of rules that should be followed when using internet services like email, message boards and newsgroups. Describes what it means to be "well behaved" while interacting with other people online.

Netscape Communications

A company that developed one of the most popular web browsers: Netscape Navigator.

Network

A group of electronic devices connected together that are able to communicate with each other.

Network Management

Network management can be defined as a set of activities (e.g. network monitoring, gathering and analyzing the statistics, adjusting network configuration) performed in order to increase the network performance and availability.

Newsgroup

A virtual Internet place where people exchange thoughts, ideas and interests, amuse themselves and do a zillion other things, all by means of text messages.

Newsreader

An application that allows to use newsgroups.

NIC

Network Interface Card - a part of the computer hardware responsible for connecting a particular machine to the local area network.

NNTP

(Network News Transfer Protocol) An Internet protocol that describes how the newsgroups messages are distributed, stored, posted and retrieved.