ASSIGNMENT ONASSIGNMENT ON LAN AND WANLAN AND WAN

CONTENTSCONTENTSCOMPUTER NETWORK.LANLAN APPLICATIONSWANWAN APPLICATIONSDIFFERENCES BETWEEN LAN AND

WANMANCONCLUSION

COMPUTER NETWORKCOMPUTER NETWORKA computer network is a network of

computers that are geographically distributed.

A computer network is a communication system.

LOCAL AREA NETWORK (LAN)LOCAL AREA NETWORK (LAN)

LAN is a computer network widely used for local communication.

LAN is a digital communication system.

In LAN, transmission channels generally use coaxial or fiber optic cables and special interface units and modems.

LAN APPLICATIONSLAN APPLICATIONS

Personal computer LANs

A common LAN is one that supports personal computers.

LANs for the support of personal computers and workstations have become nearby universal in organizations of all sizes.

High-speed office networksHigh-speed office networks

New applications in the office environment have been developed for which the limited speeds of the traditional LAN are inadequate.

Desktop image processors have increased network data flow by an unprecedented amount.

Factory LANsFactory LANs

The factory environment is increasingly being dominated by automated equipment.

To move a factory is automated, the greater need for communications.

WIDE AREA NETWORK (WAN)WIDE AREA NETWORK (WAN)

A Wide area network (WAN) is a digital communication system.

WAN connects computers over long distances like cities, continents or worldwide.

Networking Environment

WANs are good for in today’s networking environment.

Data CollectionAnother important use of WANs is in

data collection.

WAN APPLICATIONSWAN APPLICATIONS

DIFFERENCES BETWEEN LAN DIFFERENCES BETWEEN LAN AND WAN.AND WAN.

SCOPE

• WAN is considered to be more vast and widespread while LAN is mainly used for private connectivity among residential offices or a single edifice.

Global UseGlobal Use

WANs are allowing work groups to be spread across the globe.

Network Database

WAN allows users all over a network to access and update a single, consistent view of data

CONNECTIONSCONNECTIONS

• In case of LAN, Ethernet is the main device which is used for connecting the workstations of the computers. While in the case of WAN, common carriers are usually used and most people opt in for service providers.

NETWORK TOPOLOGYNETWORK TOPOLOGY

• LAN and WAN have different configuration.

• LAN is based on peer to peer communication while WAN is totally based on the client server model

USAGEUSAGE

• LAN is mainly used for data and peripheral scalability like the accessing of scanners printers and other peripherals. In the case of WAN, however, it may be used to conduct business, connect with people on a social level, share files and data etc.

SPEEDSPEED

COST OF THE NETWORK• The cost of transmitting LAN is

negligible while the cost of WAN is very high.

METROPOLITAN AREA METROPOLITAN AREA NETWORK.NETWORK.A computer network which is spread

over a larger area than that of a LAN.Networks that have the characteristics of

both LAN and WAN.The main objective of MAN is to

interconnect LANs and operate frequently at speeds very close to LAN speeds.

CONCLUSIONCONCLUSIONHence, networking provides many

advantages. Some of these are listed below:

• Networks allow efficient of resources. • Networks help keep information reliable

and up-to-date.• Networks help speed up data sharing.

SOURCES/ REFERENCESSOURCES/ REFERENCESSinha P.K, Sinha P, Fourth edition, 2007,

Computer Fundamentals, BPB Publications, pg 341.

Basandra S.K, 2006, Computers Today, Galgotia Publications Pvt. Ltd,pg 258-262, pg 319-330.

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