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6                              App Development
















                     Let’s surf

                     Ø  What is an App?                              Ø  The Android and iOS
                     Ø  Categories of Mobile Apps                    Ø  Varieties of Apps
                     Ø  Downloading and Installing the App           Ø  Developing an App





                                                                                                21 st
                  Let’s PLug-in                                                               Century   #Information Literacy
                                                                                               Skills
                    Write the names of any five apps you have seen in your parent's mobile.


                    1. _______________           2. _______________          3. _______________

                    4. _______________           5. _______________




                        WHAT IS AN APP?


                 An app is a software program primarily developed for hand-held smart devices such as mobile and
                 tablet. It helps them 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 to 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. However, some of the apps need to be purchased from the app store.

                 The three most popular app stores are Google's Play Store, Apple's
                 App Store, and Microsoft Store. However, the Microsoft Store  is not
                 in use for mobile devices. But you can download the apps for your
                 computer from the Microsoft Store.
                 The three main types of applications are as follows:
                   Desktop Applications: The application that is mainly developed for a computer or laptop is called
                   a desktop application. This type of application depends on the hardware and operating system
                   on which it runs. It is usually developed for a particular operating system. Some of the examples of
                   desktop applications are Paint, Notepad, and Word.
                   Mobile Applications: The software program that  is developed  for  hand-held devices  such
                   as smartphones  and tablets  is called a  Mobile application (also known as a  mobile app).



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