network


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network,

in computing, two or more computers connected for the purpose of routing, managing, and storing rapidly changing data. A local area networklocal area network
(LAN), a computer network dedicated to sharing data among several single-user workstations or personal computers, each of which is called a node. A LAN can have from two to several hundred such nodes, each separated by distances of several feet to as much as a
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 (LAN), which is restricted by distances of up to one mile, and a metropolitan area network (MAN), which is restricted to distances of up to 60 miles, connect personal computers and workstations (each called a node) over dedicated, private communications links. A wide area network (WAN) connects large numbers of nodes over long-distance communications links, such as common carrier telephone lines, over distances ranging from that between major metropolitan centers to that between continents. An internet is a connection between networks. The InternetInternet, the,
international computer network linking together thousands of individual networks at military and government agencies, educational institutions, nonprofit organizations, industrial and financial corporations of all sizes, and commercial enterprises (called gateways
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 is a WAN that connects thousands of disparate networks in the U.S., Canada, Europe, Asia, and elsewhere, providing global communication between nodes on government, educational, and industrial networks. Networks allow for resource sharing (e.g., multiple computers sharing one printer), data sharing, and communication or data exchange (e.g., electronic mailelectronic mail
or e-mail,
the electronic transmission of messages, letters, and documents. In its broadest sense electronic mail includes point-to-point services such as telegraph and facsimile (fax) systems.
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).

Bibliography

See W. Stallings, ed., Advances in Local and Metropolitan Area Networks (1994); F. Halsall, Data Communications, Computer Networks, and Open Systems (4th ed. 1996); R. Cahn, Wide Area Network Design: Concepts and Tools for Optimization (1998); T. Parnell and C. Null, Network Administrator's Reference (1999).

network

A group of computer systems situated at different locations and interconnected in such a way that they can exchange information by following agreed procedures. The information is transmitted as an encoded signal at high speed over communication lines. See also computing.

Network

Any set of interconnected elements that form an overall organization; also a diagram representing a series of interconnected events, as in the representation of the critical tasks in a building project.

network

[′net‚wərk]
(communications)
A number of radio or television broadcast stations connected by coaxial cable, radio, or wire lines, so all stations can broadcast the same program simultaneously.
(electricity)
A collection of electric elements, such as resistors, coils, capacitors, and sources of energy, connected together to form several interrelated circuits. Also known as electric network.
(engineering)
net
(mathematics)
The name given to a graph in applications in management and the engineering sciences; to each segment linking points in the graph, there is usually associated a direction and a capacity on the flow of some quantity.

network

1. An aggregate of interconnected electric conductors consisting of high-voltage feeders, step-down transformers, protective devices, mains, and services.
2. In CPM terminology, the same as arrow diagram.

network

1. Electronics a system of interconnected components or circuits
2. Computing a system of interconnected computer systems, terminals, and other equipment allowing information to be exchanged

network

(networking)
Hardware and software data communication systems.

The OSI seven layer model attempts to provide a way of partitioning any computer network into independent modules from the lowest (physical) layer to the highest (application) layer. Many different specifications exist at each of these layers.

Networks are often also classified according to their geographical extent: local area network (LAN), metropolitan area network (MAN), wide area network (WAN) and also according to the protocols used.

See BITNET, Ethernet, Internet, Novell, PSTN, network, the.

[Tanenbaum, A., "Computer Networks; 2nd ed.", Prentice Hall, Englewood Cliffs, NJ, 1989.]

network

(1) Any arrangement of elements that are interconnected. See network database.

(2) A system that transmits data between users, which includes the user devices (phones, computers, etc.) and the network equipment (servers, switches, routers, cables, etc.). In wireless systems, antennas replace the cables.

LANs and WANs
Local area networks (LANs) are internal to a home, building or complex, and almost all use the IEEE Ethernet standard. The wireless counterpart is commonly known as "Wi-Fi." Wide area networks (WANs) span large distances, such as a state or nation. See LAN, WAN, Ethernet, Wi-Fi, client, server, switch, router, enterprise networking and communications.
References in periodicals archive ?
Network theory was probably first introduced in the field of electrical and electronic engineering (Murdock, 1927).
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The most popular network configuration is the LAN, in which one or more personal computers (PCs) are the main repositories of all application programs and data files shared by the network users.
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Safend--Through integration with Safend Protector, Lockdown Enforcer will add the capabilities of network access control to Safend's holistic endpoint security solution.
We applaud Juniper's leadership in developing a standards-based architecture that meets customer's network access control demands today.
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