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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 became a necessity?               Need of Computer Networking
                                                                               Components of a Communication System
                                                                               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 from 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 exchange of data between
                 several such users. Thus, the idea of linking two machines together that can share

                 information, emerged.







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