Page 19 - KEC Khaitan C8.3 Flipbook
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                      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.



                   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.  Infrared  light is 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 computers on a network.

                 Certain network protocols and standards must 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 govern 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 establishes 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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