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Radio waves: These waves are commonly used for long distance communication or sending
                   messages, information for communication for aircraft or naval communication. The information
                   is sent in the form of electromagnetic waves.


                 Short Distance Wireless Media

                 Short distance wireless communication media includes Wi-Fi, Bluetooth, and satellites.
                   Wi-Fi: It stands for Wireless Fidelity, which lets you connect to the Internet without any wired
                   connection from your PC. It is a popular form of wireless connection as it does not require
                   cables.

                    It  can  be  used  to  get  connected  through  a  variety  of
                   devices like laptops, digital cameras, smartphones, gaming
                   consoles, etc. To connect to a Wi-Fi network a hotspot is

                   required. The hotspot acts as a gateway to the Internet, you
                   need to connect to hot-spot to be able to connect to the
                   Internet.


                                                              Bluetooth: This wireless technology creates a small wireless
                                                         network called Personal Area Network between personal
                                                         computers and peripheral devices such as printers, mouse,

                                                         keyboards, headphones, etc. It is used to exchange data
                                                         over a short distance from fixed or mobile devices.





                      PURE
                      FACT       Bluetooth was named after the 10th century Danish king, Harald I Bluetooth.








                               Subject: Global Positioning System
                               Global Positioning System: The short form of Global Positioning
                               System is GPS. It is a satellite-based navigation system which
                               is used to identify the geographical location of an object. It is
                               made up of a network of 24 satellites placed into orbit by the
                               U.S. Department of Defense. These are strategically positioned
                               so that at least four satellites can be seen with a clear line of
                               sight from anywhere on the globe. It is used for tracking mobiles, cars, etc.











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