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CHAPTER
                 NETWORKING CONCEPTS                                                                        1





















                                   Hey, Techie, I want to know about
                                   the evolution of networks. How           Topics Covered                      95%
                                   did  technology  take  over our              Computer Network
                                   lives and become a necessity?                Need for Computer Networking
                                                                                Components of a Network
                                                                                Requirements for Computer Networking
                                                                                Network Terminologies
                                                                                Types of Networks
                                                                                Network Architecture
                 Shweta, if we look back over the past few decades,            Topologies
                 before any one of us ever touched a computer                   Networking Transmission Media
                                                                               Protocols
                 or was connected  to  the Internet, networking
                 meant  going out  to  meet  some  friends and
                 having a conversation. The notes they took were the databases and servers. The
                 data people wanted to share were their dreams, curiosities and memories, and this
                 data was transmitted by writing in each other’s notebook and passing it from one
                 hand to another.




                                   That sounds like an interesting time to live in but it’s so different than today
                                   where everything is just a click away.





                 Then, humans took a giant leap and computers were developed for an individual
                 to work on his/her own machine. But as the usage increased, it was observed that
                 although  computers  offered computation  power  to  their users, they  could  not
                 suffice all their needs because applications often demanded the exchange of data
                 between several such users. Thus, the idea of linking two machines together that

                 can share information, emerged.







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