1. NETWORKINGLAN,WAN,MAN

2. NETWORKING LINKING TWO OR MORE SYSTEM FOR SHARING DATA. LINKING TWO OR MORE SYSTEM FOR SHARING DATA. AREA NETWORKS:CLASSIFIED AS- AREA NETWORKS:CLASSIFIED AS- LAN(LOCAL AREA NETWORK)LAN(LOCAL AREA NETWORK) WAN(WIDE AREA NETWORK)etc.WAN(WIDE AREA NETWORK)etc.

3. NETWORK DESIGN-TWO HIGH LEVEL DESIGN ARE: NETWORK DESIGN-TWO HIGH LEVEL DESIGN ARE: CLIENT SERVERCLIENT SERVER PEER TO PEER SERVERPEER TO PEER SERVER NETWORK TOPOLOGY-REPRESENT LAYOUT/STRUCTURE OF DATA FLOW. NETWORK TOPOLOGY-REPRESENT LAYOUT/STRUCTURE OF DATA FLOW. FOR e.g.: BUS NETWORK STAR NETWORK etc. STAR NETWORK etc.

4. LOACL AREA NETWORK(LAN) SUPPORT NETWORK IN CLOSE AREA. SUPPORT NETWORK IN CLOSE AREA. THEY ARE BUILD UP OF INEXPENSIVE HARDWARE LIKE: THEY ARE BUILD UP OF INEXPENSIVE HARDWARE LIKE: ETHERNET CABLES,NETWORK ADAPTERS,AND HUBS. FOR CONTOLLING ACCESS M.S WINDOWS PROVIDE A SYSYTEM SOFTWARE CALLED ICS. FOR CONTOLLING ACCESS M.S WINDOWS PROVIDE A SYSYTEM SOFTWARE CALLED ICS.

5. ETHERNET PHYSICAL AND DATA LINK LAYER TECHNOLOGY. PHYSICAL AND DATA LINK LAYER TECHNOLOGY. INVENTED BY “ROBERT METCALFE”. INVENTED BY “ROBERT METCALFE”. FIRST DEPLOYED IN 1980 FOR THEORETICAL PURPOSE WITH SPEED OF 10 mbps. FIRST DEPLOYED IN 1980 FOR THEORETICAL PURPOSE WITH SPEED OF 10 mbps. LATER INCREASED TO 100mbps,AT PRESENT 1000mbps. LATER INCREASED TO 100mbps,AT PRESENT 1000mbps. HIGHER LEVER INTERNET PROTOCOL i.e. IP USE IT AS TRANSMISSION MEDIUM. HIGHER LEVER INTERNET PROTOCOL i.e. IP USE IT AS TRANSMISSION MEDIUM.

6. TOKEN RING- THIS IS A 4-MBPS OR 16-MBPS TOKEN PASSING METHOD, OPERATING IN A RING TOPOLOGY. TOKEN RING- THIS IS A 4-MBPS OR 16-MBPS TOKEN PASSING METHOD, OPERATING IN A RING TOPOLOGY. FDDI- IT PROVIDES DATA SPEED AT 100MBPS WHICH IS FASTER THAN TOKEN RING AND ETHERNET LANs. FDDI- IT PROVIDES DATA SPEED AT 100MBPS WHICH IS FASTER THAN TOKEN RING AND ETHERNET LANs.

7. LAN COMPONENTS LAN COMPONENTS NETWORK DEVICES FILE SERVERS WHICH ARE NORMALLY ACCESSED BY ALL OTHER COMPUTERS. NETWORK DEVICES FILE SERVERS WHICH ARE NORMALLY ACCESSED BY ALL OTHER COMPUTERS. NETWORK COMMUNICATION DEVICES USED FOR NETWORK OPERATIONS. NETWORK COMMUNICATION DEVICES USED FOR NETWORK OPERATIONS. NETWORK INTERFACE CARDS(NICs) FOR EACH NETWORK DEVICEREQUIRED TO ACCESS THE NETWORK. NETWORK INTERFACE CARDS(NICs) FOR EACH NETWORK DEVICEREQUIRED TO ACCESS THE NETWORK.

8. CABLE IS A PHYSICALTRANSMISSON MEDIUM. CABLE IS A PHYSICALTRANSMISSON MEDIUM. NETWORK OPERATING SYATEM- SOFTWARE APPLICATIONS REQUIRED TO CONTROL THE USE OF THE NETWORK LAN STANDARDS. NETWORK OPERATING SYATEM- SOFTWARE APPLICATIONS REQUIRED TO CONTROL THE USE OF THE NETWORK LAN STANDARDS.

9. CABLES EARLY LANs ARE BASED ON CO- AXIAL CABLES EARLY LANs ARE BASED ON CO- AXIAL CABLES LATER ON IBN INTRODUCED TOKEN RING LATER ON IBN INTRODUCED TOKEN RING IN 1984,STAR LAN USED SIMPLE CABLES THAT ARE USED IN TELEPHONE IN 1984,STAR LAN USED SIMPLE CABLES THAT ARE USED IN TELEPHONE

10. WIDER AREA NETWORK(WAN) IT COVERS A BROAD AREA,i.e. NOT LIMITED A BUILDING. IT COVERS A BROAD AREA,i.e. NOT LIMITED A BUILDING. IT CONNECTS DIFFERENT LANs WITH EACH OTHER. IT CONNECTS DIFFERENT LANs WITH EACH OTHER. THEY ARE OFTEN BUILT BY LEASED LINES,ROUTER AND HUB. THEY ARE OFTEN BUILT BY LEASED LINES,ROUTER AND HUB.

11. BEING MORE EXPENSIVE,LEASED LINES ARE REPLACED BY CIRCUIT SWITCHING or PACKET SWITCHING. BEING MORE EXPENSIVE,LEASED LINES ARE REPLACED BY CIRCUIT SWITCHING or PACKET SWITCHING. MANY WANs ARE BUILT FOR ONEORAGNISATIONS AND ARE PRIVATE. MANY WANs ARE BUILT FOR ONEORAGNISATIONS AND ARE PRIVATE. SOME ARE BUILT BY “ISP”,WHICH CONNECTS ORG.s LAN TO INTERNET. SOME ARE BUILT BY “ISP”,WHICH CONNECTS ORG.s LAN TO INTERNET.

12. INTERNET SERVICE PROVIDER IT’S A COMPANY THAT PROVIDE ACCESS TO INTERNET IT’S A COMPANY THAT PROVIDE ACCESS TO INTERNET PROVIDE DIAL-UP CONNECTIONS, E-MAIL ACCOUNT OR OTHER MEANS OF DATA TELECOMMUNICATION. PROVIDE DIAL-UP CONNECTIONS, E-MAIL ACCOUNT OR OTHER MEANS OF DATA TELECOMMUNICATION.

13. LEASED LINES: LEASED LINES: THEY ARE SYMMETRIC TELECOMMUNICATION LINE CONNECTING TWO LOCATION. THEY ARE SYMMETRIC TELECOMMUNICATION LINE CONNECTING TWO LOCATION. CIRCUIT SWITCHING: CIRCUIT SWITCHING: NETWORK THAT ESTABLISHES FIXED CIRCUIT OR CHANNEL B/W NODES AND TERMINALS NETWORK THAT ESTABLISHES FIXED CIRCUIT OR CHANNEL B/W NODES AND TERMINALS

14. ROUTER: ROUTER: COMPUTER WHOSE HARDWARE AND SOFTWARE USED TO FORWARD THE INFORMATION.

15. LAN WAN AND HOME NETWORKING RESIDENCE EMPLOY LAN AND CONNECT TO INTERNET WAN via ISP USING BROADBAND MODEM. RESIDENCE EMPLOY LAN AND CONNECT TO INTERNET WAN via ISP USING BROADBAND MODEM. ISP PROVIDES “WAN IP ADDRESS”- MODEM AND, “LAN IP ADDRESS”- HOME COMPUTER. ISP PROVIDES “WAN IP ADDRESS”- MODEM AND, “LAN IP ADDRESS”- HOME COMPUTER. ALL LANs COMMUNICATE WITH EACH OTHER BY BROADBAND ROUTER(ISP). ALL LANs COMMUNICATE WITH EACH OTHER BY BROADBAND ROUTER(ISP).