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With the advancement in technology, smartphones play an important role in our daily life. However,
            the main function of the smartphones is telecommunication, but now with the help of apps, you
            can do many things which were unimaginable on smartphones. You can perform various tasks on
            smartphones such as online bill payment, online shopping, video calling, message chat, and play
            game.

            What is an App?

            An app is a software program primarily developed for hand-held smart devices such as mobile and
            tablet. It helps the users to perform their personal and professional tasks more effectively. The
            app is a modern term derived from the word application. Generally, the word app is used to refer
            the applications on smart devices such as mobiles and tablets. Thousands of apps are available for
            smart devices. Most of the apps are freely downloadable from app store. However, some of the apps
            need to be purchased from the app store.
            The three most popular app stores are Googleʼs Play Store, Appleʼs App Store, and Microsoft
            Store.

            There are mainly three types of applications, which are:
                Desktop: The application that is mainly developed for computer or laptop is called a desktop
               application. This type of application depends on the hardware and operating system on which it
               is going to use. It is usually developed for a particular operating system. Some of the examples of
               desktop applications are Paint, Notepad, and Word.

                Mobile: Mobile application (also known as mobile app) is software program that is developed
               for hand-held devices such as smartphones and tablets. These apps are installed and run
               on  the  device  itself.  Some  of  the  examples  of  mobile  apps  are  Snapchat,  WhatsApp,  and
               Facebook Messenger.
                Web: A Web app is an application program that is stored on a remote server and accessed over
               the Internet through a Web browser interface. Some of the mobile apps and Web apps look and
               work in the same way, with very little difference between them. However, these two are very
               different from each other. One of the major differences is that the Web apps require an Internet
               connection to work.

                                                                                  Critical Thinking
                   byte Quest                                                     Information Literacy



                 Differentiate desktop and web apps.








            Defining the Android and iOS

            Nowadays, most of the mobile devices run on Android and iOS.





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