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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