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    1              NETWORKS AROUND US

                     PRIMARY PREVIEW

                        Computer Networks
                        Network Devices
                        Data Communication System
                        Network Protocols
                        Types of Computer Networks
                        Network Topologies
                        Transmission Media

                              AIRO, can computers
                              work together like a team?

                                                                          Yes, when they’re connected, they
                                                                                         can help each other.

                              Connected? How does that work?
                                                                                   They use cables, signals or
                                                                              wireless networks to link them.

                              But, how do they actually
                              share things like files or data?                  Great question! Let’s explore

                                                                              how it all works in the chapter.

                                                                                                                       7
                                                                                                   Networks Around Us

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