Page 46 - CA 165 ver 1.0 Class 9
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Some commonly used protocols are as follows:

                     Protocols                   Full Form                                   Detail

                   HTTP            Hypertext Transfer Protocol            Set of rules for  transferring  texts, graphics,
                                                                          audio, images, videos, etc. on world wide web.
                   HTTPS           Hypertext Transfer Protocol Secure     Secure version of HTTP that is now commonly
                                                                          used to perform secure transaction  on a
                                                                          website.
                   TCP/IP          Transmission Control Protocol/         Ensures delivery  of  messages/data  that  has
                                   Internet Protocol                      been sent on a network.

                   FTP             File Transfer Protocol                 Upload or download files from remote server.

                   POP             Post Office Protocol                   Used for downloading email from a server.

                   SMTP            Simple Mail Transfer Protocol          Used for sending and receiving mails.



                    MULTIMEDIA

                  ‘Multi’ means more than one or many and ‘Media’ means mode of communication. Thus multimedia
                  means an integration of multiple media such as graphics, text, sound, videos, and animations in one set of
                  file. Exchange of information or communication among people can take place in the form of text, sound,
                  pictures, graphics, videos, animations, etc. The present technology has made it possible for computer
                  users to combine different format of contents to enhance the effectiveness of a communication.
                  Technology that combines more than one mode of communication for effective deliverance of information is
                  referred as ‘Multimedia’. It provides an interactive and simulating means of communication. Communication
                  with multimedia feature is very entertaining and enriching as it involves audio visual presentations also.

                  Components of Multimedia

                       Text: It refers to contents that can be read or typed on the screen.
                  l
                       Audio: It includes speech, audio effects, ambient sound and music.
                  l
                       Video: It includes images moving at a specific rate with some audio.
                  l
                       Graphics: It includes drawings, paintings, scanned images, photographs and video.
                  l
                       Animation: It refers to display of images in sequence or in whirling motion or changing interface in
                  l
                       two or three dimensions.

                  Uses of Multimedia

                  l    Advertisement: Multimedia has brought a revolution by making contents and presentation for
                       advertisement.
                  l    Entertainment: Nowadays, various types of games, music, etc. are a major source of entertainment.
                       Many types of games, animations and cartoon films, etc. contain multimedia features.
                  l    Education: Many online training courses of educational institutes are being offered whose contents
                       and presentations are made with the help of multimedia features. They are motivating & highly
                       interactive.


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