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                              Cyber Security





                                                                                                   Unit






                       Goal Glimpse

                          What is a Network?                              Different Types of Networks
                          What is Internet?                               Various terms Related to Internet

                          What is Spam?                                   What is Malware?
                          Antivirus                                       Protecting your Data on Internet
                          Firewall                                        Cyber Security
                          What is Cybercrime?                             Netiquettes
                          Cyber Law


                  In today's world, we rely on the Internet for many of our daily tasks. It plays a big role in how
                  we talk to others, find information, and interact with the world around us. The Internet provides
                  us with ways to learn, stay informed about the news, enjoy entertainment, and use useful online
                  tools. This unit will help us understand networks and their basics. We will also learn about the
                  Internet, its key terms, and how to keep our information secure, so we can make smart decisions
                  in our growing digital world.

                     WHAT IS A NETWORK?


                  A computer network  is a group  of connected
                  computers  and  devices  that  allow  people  to
                  easily  communicate  and  share  files,  software,
                  resources, and information. Each computer in
                  the network is called a node. These computers
                  can be connected using cables, hubs, switches,
                  network cards (NIC), modems, or routers.
                  Need for Networking

                  Networking the computers is becoming a basic need of today’s world. Some of the main reasons
                  to connect the devices into networking are:

                     Sharing Resources: The main purpose of computer networks is to share things like printers,
                     scanners, and modems. This helps use equipment more efficiently and avoids buying extra
                     ones. For example, many computers can use one printer.



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