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9                            App Development
















                        Your Aim


                         to learn about:
                                 What is an App?                            Defining the Android and iOS
                                  Types of Mobile Apps                        Categories of Apps
                                   Downloading and Installing the App           App Inventor


                 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 previously 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 user 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 used on smart devices such as mobiles and tablets. There are 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 purchase 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. You can download the apps
                 for your computer from the 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 of the hardware and operating system on which
                    it is run. It is usually developed for a particular operating system. Some of the examples of
                    desktop applications are Tux Paint, Text Editor and LibreOffice Writer.

                    Mobile: Mobile application (also known as mobile app) is software program developed
                    for hand-held devices such as smartphones and tablets. These apps are live and run on the
                    device itself. Some of the examples of mobile apps are Snapchat, WhatsApp, and Facebook
                    Messenger.


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