computer connection

7/24/2019 Computer Connection

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COMPUTER CONNECTIONS


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INDEX INTRODUCTION

STAR NETWORK

ADVANTAGES

DISADVANTAGES

RING NETWORK

ADVANTAGES DIASADVANTAGES

COMPLETE NETWORK

ADVANTAGES

DISADVANTAGES

HYBRID NETWORK

MULTIPOINT NETWORK

ADVANTAGES

DISADVANTAGES

LAN

WAN

AKNOLEDGEMENTS


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INTRODUCTION THE TERM NETWORK MEANS A SYSTEAM OF INTERCONNECTED POINTS OR

TERMINALS .COMPUTER NETWORK IS THUS A SYSTEAM OF INTERCONNECTED

COMPUTERS TERMINALS. IT SHARES THE RESOURCES OF THE SERIESOF

INTERCONNECTED COMPUTER ,PERIPHERAND TERMINAL.


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STAR NETWORK IN THIS NETWORK THERE IS A HOST COMPUTER STORING ALL DATA AND INFORMATION

WHICH UIS ATTACHED TO LOCAL COMPUTERS.THE LOCALS COMPUTERS ARE NOT

LINKED DIRECTLY TO EACH OTHER THEY COMMUNICATE ONLY VIA THE HOST

COMPUTER THROUGH MULTIPLE COMMUNICATION LINES.THE HOST COMPUTER IS

RESPOINSIBLE FOR MAKING COMMUNICATION AMONG LOCAL COMPUTERS


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ADVANTAGES IF ANY OF THE LOCAL COMPUTERS FAIL,THE TRANSMISSION SYSTEM OF THE

NETWORK UNAFFECTED.

TRANSMISSION DELAYS BETWEEN THE TWO TERMINALS DO NOT INCREASE BY ADDING

A NEW TERMINAL.


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DISADVANTAGES THE ENTIRE SYSTEM DEPENDS UPON THE HOST COMPUTER. IF THE HOST COMPUTER

FAILS THEN THE ENTIRE NETWORK FAILS.


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RING NETWORK IN THIS COMMUNUCATION THERE IS NO

COMPUTER AS SUCH TO TRANSMIT THE DATA

CENTRALLY.THUS, THERE IS NO

CONTROLLING COMPUTER IN THIS NETWORKALL LOCAL COMPUTERS ARE CONNECTED TO

EACH OTHER IN A RING ARRANGEMENT


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ADVANTAGES IT IS A TRULY DISTRIBUTING BU PROCECCING

STSTEM.

IF ANY OF THE COMUTER FAILS/BREAKS DOWN

THEN THE TRANSMISSION CONTINIOUS FROMTHE ALLTERNATE COMPUTERS.


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DISADVANTAGES THE ADDITION OF THE NEW TERMINAL IN THE

NET WORK DELAYS THE COMMUNICATION.


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COMPLETE NETWORK IN THIS NETWORK ALL COMPUTERS ARE CONNECTED AMOUNG THEMSELFS THE

CONTROL IS DISTRIBUTED WITH EACH COMPUTER DECIDING ITS COMMUNICATION

PRIORITIES.SINCE,EACH COMPUTER IS CONNNECTED WITH OTHER, SO IT IS CALLED

AS A POINT TO POINT LINK OF THE NETWORK.


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ADVANTAGES COMMMUNICATION IS VERY FAST BETWEEN ANY TWO COMPUTERS.

IF ANY COMPUTER BREAKS DOWN THEN IT AFFECTS ONLY THE COMMUNICATION

BETWEEN THE CONNECTED COMPUTERS.


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DISADVANTAGES IT IS COMPARATIVELY EXPENSIVE AS THE

NUMBER OF TERMINALS/POINTS CONNECTING

TO A COMPUTER IS MORE.


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HYBRID NETWORK IT IS SIMPLY A COMBINATION OF NETWORKS AS SHOWN IN THE FIGURE . IN

REALITY, A STAR OR A RING OR COMPLETE NETWORK DOES NOT GIVE THE

ABSAOLUTE SOLUTION AS THESE NETWORK HAVE VARIOUS DISADVANTAGES . THE

CONFIGURATION OF NETWORK DEPENDS UPON THE NEEDS OF THE ORGANIZATIONAL

STRUCTURE OF COMPANY.


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EX. OF HYBRID NETWORK


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MULTIPOINT NETWORK IN THIS NETWORK, A SIGNAL TRANSMISSION MEDIUM IS SHARED BY ALL THE

TERMINALS .WHEN A PARTICULAR COMPUTER WANTS TO SEND A MESSAGE TO

ANOTHER COMPUTER,THE SYSTEM CHECKS WHEATHER THE COMMUNICATION LINE IS

FREE OR NOT


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ADVANTAGES IT IS RELIABLE AS THE FALIRE OF THE COMPUTER IN THE NETWORK DOES NOT AFFECT

THE NETWORKING SYSTEM .

IT IS EASIER TO CONNECT THE NEW COMPUTER .


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DISADVANTAGES IF THE COMMUNICATION LINE FAILS THEN THE

ENTIRE SYSTEM STOPS WORKING.


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LOCAL AREA CONNECTION(LAN) A LOCAL AREA NETWORK IS A DIGITAL COMMUNICATION SYSTEM, WHICH ENABLES

INTERCONNECTING A LARGE NUMBER OF COMPUTERS &OTHER PERIPHERAL

DEVICES .THIS TYPE OF NETWORK IS GENERALLY PREFERED WITH IN A SMALLER AREA

SUCH AS AN OFFICE BUILDING OR LAB BUILDINGSAY WITHIN A RADIUS OF HALF OF

KM!.THE CONFIGURATION OF LOCAL AREA CONNECTION CAN BE A STAR,A RING OR A

MULTIPOINT NETWORK. THE TRANSMISSION CHANNEL USE CAXIAL OR FIBER OPTIC

CABLE S TO MAKE THE TRANSMISSION SPEED HIGH

ETHERNET, DEVELOPED BY XEROX CORPORATION IS AN EXAMPLE OF LAN.


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WIDE AREA NETWORK(WAN) A WIDE AREA NETWORKWAN! IS A DIGITAL COMMUNICATION SYSTEM, WHICH

INTERCONNECTS A LARGE NUMBER OF COMPUTERS IN WIDE AREA .THI TYPE OF

COMMUNICATION NETWORK MAY BE DEVOLEPED TO OPERATE WORLD WIDE. IN A

WAN .THE TRANSMISSION MEDIUM USED CAN BE TELEPHONE LINES ,MICROVAVE

&STELLITE LINKS ETC.

THE ARPANET OF THE U.S. DEPT.OF DEFENCE IS AN EXAMPLE OF WAN.


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AKNOLEDGEMENTS

THE YADAV BROTHERS

ANIKET AND DURVISH YADAV


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