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




               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 ground
              positioning 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 evenly spaced out so that four

              satellites can be seen with a clear line of sight from
              anywhere on the globe. It is used for tracking mobiles,
              cars, etc.

               Infrared Communication: The infrared light transmits data through the air and can propagate
              throughout  the room by bouncing  off  surfaces but  will  not penetrate  walls.  This type  of
                                     transmission uses infrared light to send data. These are similar to normal

                                     lights, except that these have a longer wavelength. Therefore, they are
                                     not  visible  to us. You  can see  the  use  of this  type  of transmission  in
                                     everyday life: TV remotes, automotive garage doors, wireless speakers,

                                     etc. All of these make use of infrared light for transmission.


                       PROTOCOLS


            Protocol is a set of rules that governs the communication between the computers on a network.
            Certain network protocols and standards are to be followed in order to ensure that your computer
            can communicate  with another computer  over a network. Some  of  the  Internet  protocols  for
            addressing the data transmitted over the Internet are here.


            HYPERTEXT TRANSFER PROTOCOL (HTTP)
            HTTP stands for Hypertext Transfer Protocol. It is the set of rules or protocols that governs the

            transfer of hypertext (webpages) between two or more computers using a standard language
            HTML. It is the primary protocol used to exchange data between a web browser and a website.

            HYPERTEXT TRANSFER PROTOCOL SECURE (HTTPS)

            HTTPS  stands  for  Hypertext  Transfer  Protocol Secure. It is an extension of Hypertext Transfer
            Protocol  used  for secure  communication  over a  network.  It makes  a secure  connection  by
            establishing an encrypting link between the browser and server, hence maintaining data integrity
            by encrypting the data.





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