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    NETWORK ARCHITECTURE

                      The network architecture defines the overall design of the computer network. There are two types of
                      network architectures.
                           Peer-to-Peer Network

                      It is a network of two or more computers that uses the same type
                      of program to share the data.  Each computer is considered to
                      have equal responsibilities  and acts  like a server  to the other
                      computers in the network. It works well in a small environment.

                           Client-Server Network                                                 Peer-to-Peer Network
                      It is a network in which one computer is designated as the server and all the other computers
                      connected on the network are called the clients. The clients can request for the services from the
                      server. The server processes the request and sends back the requested information. This is called
                      the client-server network.

                                                                    Internet
                                                  Clients

                                                                                              Server

                                                               Client-Server Network

                             WIRELESS NETWORKING TECHNOLOGY

                      In a wireless networking technology, no wires or physical media is used for connecting computers. It
                      uses electromagnetic waves like infrared, microwave and radio waves for transmission of the data.
                      The choice of the technology depends on the distance and speed of transmission. Two common types
                      of wireless technologies are Wi-Fi and Bluetooth.

                           Wi-Fi
                      Wi–Fi is the most popular wireless communication technology used in
                      homes, private business LANs and public hotspots. A Wi-Fi enabled
                      device such as a PC, video game console, mobile phones or MP3                Wi  Fi
                      player can connect to the Internet when it comes within the range
                      of a wireless network. Wi-Fi allows us to deploy local area networks
                      without wires and thus reduces the cost of the network expansion.
                                                                                                                    Wi Fi
                                                                                                        WiFi
                                                                                                          Wi-Fi
                                                                                                      Electronic Devices
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