Basic networking
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Mr. Khan's presentation summarized key aspects of computer networking. It defined a network as connecting two or more computers through a communication medium. Networks allow users to share resources like files, printers, and email. The history of networking involved developments by organizations like Unisys to further the technology. Networks can be structured in different topologies like bus, star, ring and mesh, and use protocols like Ethernet, Token Ring, and TCP/IP to exchange data.
Basic networking
- 1. Mr.Khan 1
- 2. Topic of Presentation 2 Mr.Khan
- 3. Contents What is network? Uses of networks History of networking Types 0f networking How networks are structured? Network Topologies Network Protocols 3 Mr.Khan
- 4. Networking: - ____”When two or more computers connected to each other through some communication media is called Networking.____” 4 Mr.Khan
- 5. for example:- 5 Mr.Khan
- 6. History of networking:- Over the five decades that Unisys has been involved in the computer industry, it has participated in the development of networking technologies while working under contract for the Department of Defense (DOD) and other government agencies and in the course of developing its commercial product offerings. During this time Unisys has made several significant technical contributions furthering the development of networking in the industry at large. 6 Mr.Khan
- 7. Why Networking? Sharing information — i.e. data communication Like this Mr.Khan 7
- 8. Uses of networks:- Network allows user to share program and data simultaneously. Network allows users to share peripheral devices. Network allows user to share email through network. 8 Mr.Khan
- 9. Example 9 Mr.Khan
- 10. Types of networks Local Area Network(LANs) Wide Area Network (WANs) Metropolitan Area Network(MANs) Campus Area Network(CANs) Home Area Network(HANs) Intranet and Extranet 10 Mr.Khan
- 11. Local Area network Its is digital communication system capable of interconnecting a large number of computer terminals and devices with in a limited area. Its speed is faster than WANs. But is small in covering area. 11 Mr.Khan
- 12. For example 12 Mr.Khan
- 13. Wide area network Its is digital communication system capable of interconnecting a large number of computer terminals and devices through different cities. Its is slower than WAN. 13 Mr.Khan
- 14. For example 14 Mr.Khan
- 15. Metropolitan area network A MANs connect a geographical area larger than LAN but LESS than WAN such as city with dedicated or high performance hardware. Mobile phones system based on MANs. 15 Mr.Khan
- 16. For example 16 Mr.Khan
- 17. Campus Area Network A CANs follow the same principle as LANs work. With a CAN different campus offices and organization can be linked together. 17 Mr.Khan
- 18. For example 18 Mr.Khan
- 19. Home area network A home network (HANs) is a network contained a person’s digital devices from multiple computer and devices such as Printer Telephones DVDs 19 Mr.Khan
- 20. For example 20 Mr.Khan
- 21. Intranet and extranet Its is privately own-secure business network based on internet technology not necessarily to the internet. Information is available to all employees. 21 Mr.Khan
- 22. Extranet Its combination of multiple intranets. Intranets of different companies are connected each other to share data and information. 22 Mr.Khan
- 23. Extranet 23 Mr.Khan
- 24. Intranet 24 Mr.Khan
- 25. How network are structured ? Following are the ways to form a network. Client/server Networks. Peer to Peer Networks. Hybrid Network. 25 Mr.Khan
- 26. Client/server Networks Inthis type of network one or more computer are dedicated server and the remaining computer works as client. The client are all other computers on the network. 26 Mr.Khan
- 27. advantages • Advantages of client/server networks • Facilitate resource sharing – centrally administrate and control • Facilitate system backup and improve fault tolerance • Enhance security – only administrator can have access to Server 27 Mr.Khan
- 28. Disadvantages • Disadvantages of client/server networks • High cost for Servers • Need expert to configure the network • Introduce a single point of failure to the system 28 Mr.Khan
- 29. For example 29 Mr.Khan
- 30. Peer to peer network In this network every computer plays a role of server or client depending upon the nature of communication . All computers have equal rights. No one computer can control over other computer. 30 Mr.Khan
- 31. advantages • Advantages of peer-to-peer networks: • Low cost • Simple to configure • User has full accessibility of the computer Mr.Khan 31
- 32. Disadvantages of peer-to-peer o May have duplication in resources Difficult to uphold security policy Difficult to handle uneven loading Mr.Khan 32
- 33. For example 33 Mr.Khan
- 34. Hybrid network Ithas the combined feature of both client and peer to peer networks The user take advantage of both networks. 34 Mr.Khan
- 35. advantages Its provide both the facility of peer to peer model and client server model DISADVANTAGE Hard ware cost . Maintenance. 35 Mr.Khan
- 36. For example 36 Mr.Khan
- 37. Network topologies ____” The scheme of joining computer in a network is called topology___” 37 Mr.Khan
- 38. Types of topologies Bus Topology Ring Topology Star Topology Tree Topology Mesh Topology 38 Mr.Khan
- 39. Bus Topology In bus topology all the computer are connected in the series with a common communication medium. The communication medium is called BUS. Bus is used in LAN because It is To installed. If the one node of bus fail then the whole network will be destroy. 39 Mr.Khan
- 40. For example 40 Mr.Khan
- 41. Ring topology In ring topology every device has exactly two neighbor for communication purpose and the last computer is connected to the first computer all the computer are connected in ring shape. A failure in cable or a device breaks the loop and the entire network fails. 41 Mr.Khan
- 42. For example 42 Mr.Khan
- 43. Star topology All the computer are connected to central HUB OR Switch. Twisted pair cable is used in star topology. Its is mostly use in LAN because it is easy to maintain . If the HUB or SWITCH or fail then entire network becomes fail. 43 Mr.Khan
- 44. For example 44 Mr.Khan
- 45. Tree topology Tree topology integrates the multiple star topologies together on to a bus all the computer are connected in such a way to form tree like structure. It has combined feature of STAR and BUS topology. It is difficult to configure. 45 Mr.Khan
- 46. For example 46 Mr.Khan
- 47. Mesh topology In mesh topology every computer directly connected to every other computer on the network. Mesh topology used in WAN. The installation of mesh topology is difficult. Its performance is not affected with the heavy transmission of data. 47 Mr.Khan
- 48. For example 48 Mr.Khan
- 49. Protocols Protocols are the rules to exchange data between two devices. Types of Protocols: Ethernet Token Ring ARCnet DSL TCP/IP 49 Mr.Khan
- 50. Ethernet Its is most commonly used in LAN protocols. Ethernet is used in BUS topology with high speed network cable. It is relatively simple and cheaper. All the computer in Ethernet using same cable to send or receive data. 50 Mr.Khan
- 51. Ethernet cable Ethernet converter 51 Mr.Khan
- 52. Token ring Token ring passing protocols is used in ring topology. A token is an electronic signal. The token ring is associated with IBM (international Business Machines) Which worked with the concept of ring network 52 Mr.Khan
- 53. Token passing technology 53 Mr.Khan
- 54. ARCnet Arc net stands for Attached Resource Computer Network. It used either pair or co-axial cable. The original ARCnet protocol was very slow ARCnet is inexpensive, reliable, easy to setup and easy to expand 54 Mr.Khan
- 55. sadadasdasd Co-axial cable Mr.Khan 55
- 56. TCP/IP TCP/IP stand for Transmission Control Protocol/Internet Protocol. It is WAN protocol. Two different types of computer connect each other using this protocol. TCP/IP differs for different computers. Mr.Khan 56
- 57. ISDN ISDN stands for Integrated Services Digital Network. ISDN modem is different from dial up modem It provides better transmission rate Mr.Khan 57
- 58. ISDN MODEM DAIL-UP MODEM Mr.Khan 58
- 59. DSL DSL stands for Digital Subscribe Line. It provides high speed transmission of data over telephone line. It is alternative of isdn modem. Its is use every where in office, homes etc. Mr.Khan 59
- 60. DSL MODEM Mr.Khan 60
- 61. Summary of Presentation What is network? Uses of networks History of networking Types 0f networking How networks are structured? Network Topologies Network Protocols 61 Mr.Khan
- 62. 62 Mr.Khan