Page 394 - Computer Science Class 11 With Functions
P. 394

Third-party cookies or tracking scripts that track users’ activities online are often used for collecting digital footprints.
        Your digital footprints may be stored in databases specific to the search engines, apps, and social media platforms, as
        well as public databases.

        15.2 Social Networks

        In this age of digitization, people have found many ways to communicate with each other online. Such interactions
        often lead to the formation of social, economic, and political networks, called social networks. Users of social networks
        exchange information, pictures, and videos with each other to stay connected with friends, search for job opportunities,
        or promote their businesses.

        15.2.1 Common Social Networking Platforms
        In the past few years, a number of social networking sites and apps have become popular. For example, Facebook,
        Twitter, LinkedIn, Instagram, Telegram, and WhatsApp.

        1.  Facebook: It is one of the most commonly used platforms that enable friends and like-minded
           people to network. Usage of Facebook is free of cost. After creating an account, the users can chat
           with each other, upload their pictures, post live stories of their life events, create their page, express
           their views, create a new group or join an existing group and follow people/pages of interest. Using
           the Like button, the users can express their appreciation. Recently Facebook has allowed users to express more
           emotions  such  as  wow,  love  it,  and  angry.  Facebook  also  analyses  the  users’  activity  data  to  come  up  with
           recommendations for its users. For example, Facebook prompts the users to add more friends depending on their
           interactions on Facebook.
        2.  YouTube:  YouTube  is  a  common  platform  for  sharing  videos  and  audios.  As
           millions of audio and videos are available on YouTube, free of charge, it has
           become a great source of entertainment and resource sharing. Further, as a
           large number of academicians have posted several videos of their courses, it has become a great learning platform
           too. YouTube has a 4-point policy with four ‘R’s:

           ●   Remove the content that violates its policies.
           ●   Reduce the speed of harmful misinformation.
           ●   Raise the authoritative sources for news.
           ●   Reward trusted creators and artists.

            Users of YouTube can create their channels. A YouTube channel helps to know what’s in the news and is trending
           globally. The free version of YouTube includes some advertisements while watching a video or listening to audio.
           However,  you  may  enjoy  an  ad-free  service  on  YouTube  by  paying  a  small  subscription.  Users  can  post  their
           comments on videos unless specifically prohibited by the creator of the video.



               Tagging is done to get someone’s attention on social media. It notifies the person who is tagged. When you tag a
               person, you use the ‘@’ symbol.
               Hashtags on YouTube are words or phrases that are added to the titles and descriptions of videos to indicate the
               subject matter or classification of the video. When you use a hashtag, you use the ‘#’ symbol.  Hashtags can increase
               a video’s discoverability on the site. A hashtag links you to postings with the same hashtag when you click on it.


        3.  X (Formerly Twitter): X is a social networking platform where people communicate through short messages called
           tweets (tweets are now called posts and retweets are now called reposts). The size of the post is limited to 10000
           characters. A post posted by a user not sure about this one as twitter now has 2 options 'For You' and 'Following'
           so in 'For You' any random tweet appears. Who have agreed to receive the sender’s messages. Using X, people can
           post/read instant news on various topics such as entertainment, politics, sports, and health.

         392   Touchpad Computer Science-XI
   389   390   391   392   393   394   395   396   397   398   399